1.09 is what percent of 2.13 - 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 2.13 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 2.13, so we can write it down as 100%=2.13.
4. We know, that x% equals 1.09 of the output value, so we can write it down as x%=1.09.
5. Now we have two simple equations:
1) 100%=2.13
2) x%=1.09
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%=2.13/1.09
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 1.09 is what percent of 2.13

100%/x%=2.13/1.09
(100/x)*x=(2.13/1.09)*x       - we multiply both sides of the equation by x
100=1.954128440367*x       - we divide both sides of the equation by (1.954128440367) to get x
100/1.954128440367=x
51.173708920188=x
x=51.173708920188

now we have:
1.09 is 51.173708920188% of 2.13