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Finding the Fourth Proportional to 88,558.70, 132,546.45 and 68,729.90

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Solution

The fourth proportional to 88,558.70, 132,546.45 and 68,729.90 is: 102,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,558.70 : 132,546.45 = 68,729.90 : x
  2. Step 2: Convert to fraction form
    88,558.70/132,546.45 = 68,729.90/x
  3. Step 3: Cross multiply
    88,558.70x = 132,546.45 × 68,729.90
  4. Step 4: Simplify right side
    88,558.70x = 9,109,904,253.86
  5. Step 5: Solve for x
    x = 9,109,904,253.86/88,558.70
  6. Step 6: Final answer
    x = 102,868.54

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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.