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Finding the Fourth Proportional to 159,355.53, 239,057.79 and 54,149.88

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Solution

The fourth proportional to 159,355.53, 239,057.79 and 54,149.88 is: 81,233.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,355.53 : 239,057.79 = 54,149.88 : x
  2. Step 2: Convert to fraction form
    159,355.53/239,057.79 = 54,149.88/x
  3. Step 3: Cross multiply
    159,355.53x = 239,057.79 × 54,149.88
  4. Step 4: Simplify right side
    159,355.53x = 12,944,950,641.57
  5. Step 5: Solve for x
    x = 12,944,950,641.57/159,355.53
  6. Step 6: Final answer
    x = 81,233.14

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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.