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Finding the Fourth Proportional to 187,082.52, 280,614.66 and 68,744.76

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Solution

The fourth proportional to 187,082.52, 280,614.66 and 68,744.76 is: 103,113.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,082.52 : 280,614.66 = 68,744.76 : x
  2. Step 2: Convert to fraction form
    187,082.52/280,614.66 = 68,744.76/x
  3. Step 3: Cross multiply
    187,082.52x = 280,614.66 × 68,744.76
  4. Step 4: Simplify right side
    187,082.52x = 19,290,787,454.18
  5. Step 5: Solve for x
    x = 19,290,787,454.18/187,082.52
  6. Step 6: Final answer
    x = 103,113.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.