70 is what percent of 258.6 - 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 258.6 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 258.6, so we can write it down as 100%=258.6.
4. We know, that x% equals 70 of the output value, so we can write it down as x%=70.
5. Now we have two simple equations:
1) 100%=258.6
2) x%=70
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%=258.6/70
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 70 is what percent of 258.6

100%/x%=258.6/70
(100/x)*x=(258.6/70)*x       - we multiply both sides of the equation by x
100=3.6942857142857*x       - we divide both sides of the equation by (3.6942857142857) to get x
100/3.6942857142857=x
27.068832173241=x
x=27.068832173241

now we have:
70 is 27.068832173241% of 258.6