128.6 is what percent of 204 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 204 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 204, so we can write it down as 100%=204.
4. We know, that x% equals 128.6 of the output value, so we can write it down as x%=128.6.
5. Now we have two simple equations:
1) 100%=204
2) x%=128.6
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=204/128.6
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 128.6 is what percent of 204

100%/x%=204/128.6
(100/x)*x=(204/128.6)*x       - we multiply both sides of the equation by x
100=1.5863141524106*x       - we divide both sides of the equation by (1.5863141524106) to get x
100/1.5863141524106=x
63.039215686275=x
x=63.039215686275

now we have:
128.6 is 63.039215686275% of 204