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Finding the Fourth Proportional to 159,347.52, 239,019.12 and 54,239.76

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Solution

The fourth proportional to 159,347.52, 239,019.12 and 54,239.76 is: 81,358.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,347.52 : 239,019.12 = 54,239.76 : x
  2. Step 2: Convert to fraction form
    159,347.52/239,019.12 = 54,239.76/x
  3. Step 3: Cross multiply
    159,347.52x = 239,019.12 × 54,239.76
  4. Step 4: Simplify right side
    159,347.52x = 12,964,339,704.21
  5. Step 5: Solve for x
    x = 12,964,339,704.21/159,347.52
  6. Step 6: Final answer
    x = 81,358.90

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1.5x scale

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.