12.31 is what percent of 135.66 - 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 135.66 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 135.66, so we can write it down as 100%=135.66.
4. We know, that x% equals 12.31 of the output value, so we can write it down as x%=12.31.
5. Now we have two simple equations:
1) 100%=135.66
2) x%=12.31
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%=135.66/12.31
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 12.31 is what percent of 135.66

100%/x%=135.66/12.31
(100/x)*x=(135.66/12.31)*x       - we multiply both sides of the equation by x
100=11.02030869212*x       - we divide both sides of the equation by (11.02030869212) to get x
100/11.02030869212=x
9.0741559781807=x
x=9.0741559781807

now we have:
12.31 is 9.0741559781807% of 135.66