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Finding the Fourth Proportional to 159,607.20, 239,301.45 and 75,407.70

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Solution

The fourth proportional to 159,607.20, 239,301.45 and 75,407.70 is: 113,059.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,607.20 : 239,301.45 = 75,407.70 : x
  2. Step 2: Convert to fraction form
    159,607.20/239,301.45 = 75,407.70/x
  3. Step 3: Cross multiply
    159,607.20x = 239,301.45 × 75,407.70
  4. Step 4: Simplify right side
    159,607.20x = 18,045,171,951.17
  5. Step 5: Solve for x
    x = 18,045,171,951.17/159,607.20
  6. Step 6: Final answer
    x = 113,059.89

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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.