Finding the Fourth Proportional to 123,722.24, 170,737.92 and 67,134.08
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Solution
The fourth proportional to 123,722.24, 170,737.92 and 67,134.08 is: 92,645.70
Step by Step Solution
- Step 1: Write the proportion equation
123,722.24 : 170,737.92 = 67,134.08 : x - Step 2: Convert to fraction form
123,722.24/170,737.92 = 67,134.08/x - Step 3: Cross multiply
123,722.24x = 170,737.92 × 67,134.08 - Step 4: Simplify right side
123,722.24x = 11,462,333,180.31 - Step 5: Solve for x
x = 11,462,333,180.31/123,722.24 - Step 6: Final answer
x = 92,645.70
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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.