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Finding the Fourth Proportional to 178,635.72, 267,959.25 and 89,840.70

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Solution

The fourth proportional to 178,635.72, 267,959.25 and 89,840.70 is: 134,763.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,635.72 : 267,959.25 = 89,840.70 : x
  2. Step 2: Convert to fraction form
    178,635.72/267,959.25 = 89,840.70/x
  3. Step 3: Cross multiply
    178,635.72x = 267,959.25 × 89,840.70
  4. Step 4: Simplify right side
    178,635.72x = 24,073,646,591.48
  5. Step 5: Solve for x
    x = 24,073,646,591.48/178,635.72
  6. Step 6: Final answer
    x = 134,763.90

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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.