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Finding the Fourth Proportional to 88,665.60, 132,868.80 and 75,446.40

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Solution

The fourth proportional to 88,665.60, 132,868.80 and 75,446.40 is: 113,059.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,665.60 : 132,868.80 = 75,446.40 : x
  2. Step 2: Convert to fraction form
    88,665.60/132,868.80 = 75,446.40/x
  3. Step 3: Cross multiply
    88,665.60x = 132,868.80 × 75,446.40
  4. Step 4: Simplify right side
    88,665.60x = 10,024,472,632.32
  5. Step 5: Solve for x
    x = 10,024,472,632.32/88,665.60
  6. Step 6: Final answer
    x = 113,059.32

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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.