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Finding the Fourth Proportional to 159,592.60, 239,331.30 and 80,680.60

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Solution

The fourth proportional to 159,592.60, 239,331.30 and 80,680.60 is: 120,991.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,592.60 : 239,331.30 = 80,680.60 : x
  2. Step 2: Convert to fraction form
    159,592.60/239,331.30 = 80,680.60/x
  3. Step 3: Cross multiply
    159,592.60x = 239,331.30 × 80,680.60
  4. Step 4: Simplify right side
    159,592.60x = 19,309,392,882.78
  5. Step 5: Solve for x
    x = 19,309,392,882.78/159,592.60
  6. Step 6: Final answer
    x = 120,991.78

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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.