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Finding the Fourth Proportional to 135,522.72, 203,517.36 and 73,236.96

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Solution

The fourth proportional to 135,522.72, 203,517.36 and 73,236.96 is: 109,981.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,522.72 : 203,517.36 = 73,236.96 : x
  2. Step 2: Convert to fraction form
    135,522.72/203,517.36 = 73,236.96/x
  3. Step 3: Cross multiply
    135,522.72x = 203,517.36 × 73,236.96
  4. Step 4: Simplify right side
    135,522.72x = 14,904,992,753.63
  5. Step 5: Solve for x
    x = 14,904,992,753.63/135,522.72
  6. Step 6: Final answer
    x = 109,981.51

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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.