Home / 125,761.05-173,574.92-72,082.05

Finding the Fourth Proportional to 125,761.05, 173,574.92 and 72,082.05

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Solution

The fourth proportional to 125,761.05, 173,574.92 and 72,082.05 is: 99,487.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,761.05 : 173,574.92 = 72,082.05 : x
  2. Step 2: Convert to fraction form
    125,761.05/173,574.92 = 72,082.05/x
  3. Step 3: Cross multiply
    125,761.05x = 173,574.92 × 72,082.05
  4. Step 4: Simplify right side
    125,761.05x = 12,511,635,701.78
  5. Step 5: Solve for x
    x = 12,511,635,701.78/125,761.05
  6. Step 6: Final answer
    x = 99,487.37

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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.