Finding the Fourth Proportional to 125,435.68, 173,092.20 and 71,722.96
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Solution
The fourth proportional to 125,435.68, 173,092.20 and 71,722.96 is: 98,972.52
Step by Step Solution
- Step 1: Write the proportion equation
125,435.68 : 173,092.20 = 71,722.96 : x - Step 2: Convert to fraction form
125,435.68/173,092.20 = 71,722.96/x - Step 3: Cross multiply
125,435.68x = 173,092.20 × 71,722.96 - Step 4: Simplify right side
125,435.68x = 12,414,684,936.91 - Step 5: Solve for x
x = 12,414,684,936.91/125,435.68 - Step 6: Final answer
x = 98,972.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.