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Finding the Fourth Proportional to 88,380.60, 132,425.10 and 83,131.80

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Solution

The fourth proportional to 88,380.60, 132,425.10 and 83,131.80 is: 124,560.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,380.60 : 132,425.10 = 83,131.80 : x
  2. Step 2: Convert to fraction form
    88,380.60/132,425.10 = 83,131.80/x
  3. Step 3: Cross multiply
    88,380.60x = 132,425.10 × 83,131.80
  4. Step 4: Simplify right side
    88,380.60x = 11,008,736,928.18
  5. Step 5: Solve for x
    x = 11,008,736,928.18/88,380.60
  6. Step 6: Final answer
    x = 124,560.56

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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.