12.3 is what percent of 66.5 - 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 66.5 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 66.5, so we can write it down as 100%=66.5.
4. We know, that x% equals 12.3 of the output value, so we can write it down as x%=12.3.
5. Now we have two simple equations:
1) 100%=66.5
2) x%=12.3
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%=66.5/12.3
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 12.3 is what percent of 66.5

100%/x%=66.5/12.3
(100/x)*x=(66.5/12.3)*x       - we multiply both sides of the equation by x
100=5.4065040650407*x       - we divide both sides of the equation by (5.4065040650407) to get x
100/5.4065040650407=x
18.496240601504=x
x=18.496240601504

now we have:
12.3 is 18.496240601504% of 66.5