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Finding the Fourth Proportional to 159,353.62, 239,178.08 and 80,523.20

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Solution

The fourth proportional to 159,353.62, 239,178.08 and 80,523.20 is: 120,859.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,353.62 : 239,178.08 = 80,523.20 : x
  2. Step 2: Convert to fraction form
    159,353.62/239,178.08 = 80,523.20/x
  3. Step 3: Cross multiply
    159,353.62x = 239,178.08 × 80,523.20
  4. Step 4: Simplify right side
    159,353.62x = 19,259,385,170.71
  5. Step 5: Solve for x
    x = 19,259,385,170.71/159,353.62
  6. Step 6: Final answer
    x = 120,859.42

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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.