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Finding the Fourth Proportional to 159,677.40, 239,318.87 and 137,028.88

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Solution

The fourth proportional to 159,677.40, 239,318.87 and 137,028.88 is: 205,374.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,677.40 : 239,318.87 = 137,028.88 : x
  2. Step 2: Convert to fraction form
    159,677.40/239,318.87 = 137,028.88/x
  3. Step 3: Cross multiply
    159,677.40x = 239,318.87 × 137,028.88
  4. Step 4: Simplify right side
    159,677.40x = 32,793,597,103.76
  5. Step 5: Solve for x
    x = 32,793,597,103.76/159,677.40
  6. Step 6: Final answer
    x = 205,374.06

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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.