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Finding the Fourth Proportional to 159,433.65, 239,134.68 and 54,251.10

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Solution

The fourth proportional to 159,433.65, 239,134.68 and 54,251.10 is: 81,371.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,433.65 : 239,134.68 = 54,251.10 : x
  2. Step 2: Convert to fraction form
    159,433.65/239,134.68 = 54,251.10/x
  3. Step 3: Cross multiply
    159,433.65x = 239,134.68 × 54,251.10
  4. Step 4: Simplify right side
    159,433.65x = 12,973,319,438.15
  5. Step 5: Solve for x
    x = 12,973,319,438.15/159,433.65
  6. Step 6: Final answer
    x = 81,371.28

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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.