Finding the Third Proportional to 77,739 and 169,965.75
Calculator
Solution
The third proportional to 77,739 and 169,965.75 is: 371,606.99
Step by Step Solution
- Step 1: Write the proportion equation
77,739 : 169,965.75 = 169,965.75 : x - Step 2: Convert to fraction form
77,739/169,965.75 = 169,965.75/x - Step 3: Cross multiply
77,739x = 169,965.75 × 169,965.75 - Step 4: Simplify right side
77,739x = 28,888,356,173.06 - Step 5: Solve for x
x = 28,888,356,173.06/77,739 - Step 6: Final answer
x = 371,606.99
Related Problems
Find third proportional to 38,869.50 and 84,982.88
Half scale
Find third proportional to 155,478 and 339,931.50
Double scale
Find third proportional to 77,741 and 169,970
Similar ratio
Find third proportional to 116,608.50 and 254,948.63
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.