Finding the Third Proportional to 81,465.75 and 117,984.09
Calculator
Solution
The third proportional to 81,465.75 and 117,984.09 is: 170,872.38
Step by Step Solution
- Step 1: Write the proportion equation
81,465.75 : 117,984.09 = 117,984.09 : x - Step 2: Convert to fraction form
81,465.75/117,984.09 = 117,984.09/x - Step 3: Cross multiply
81,465.75x = 117,984.09 × 117,984.09 - Step 4: Simplify right side
81,465.75x = 13,920,246,378.01 - Step 5: Solve for x
x = 13,920,246,378.01/81,465.75 - Step 6: Final answer
x = 170,872.38
Related Problems
Find third proportional to 40,732.88 and 58,992.05
Half scale
Find third proportional to 162,931.50 and 235,968.19
Double scale
Find third proportional to 81,468 and 117,987
Similar ratio
Find third proportional to 122,198.63 and 176,976.14
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.