Finding the Third Proportional to 107 and 136
Calculator
Solution
The third proportional to 107 and 136 is: 172.86
Step by Step Solution
- Step 1: Write the proportion equation
107 : 136 = 136 : x - Step 2: Convert to fraction form
107/136 = 136/x - Step 3: Cross multiply
107x = 136 × 136 - Step 4: Simplify right side
107x = 18,496 - Step 5: Solve for x
x = 18,496/107 - Step 6: Final answer
x = 172.86
Related Problems
Find third proportional to 53.50 and 68
Half scale
Find third proportional to 214 and 272
Double scale
Find third proportional to 109 and 139
Similar ratio
Find third proportional to 160.50 and 204
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.