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Finding the Fourth Proportional to 89,205.60, 133,808.40 and 88,591.20

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Solution

The fourth proportional to 89,205.60, 133,808.40 and 88,591.20 is: 132,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,205.60 : 133,808.40 = 88,591.20 : x
  2. Step 2: Convert to fraction form
    89,205.60/133,808.40 = 88,591.20/x
  3. Step 3: Cross multiply
    89,205.60x = 133,808.40 × 88,591.20
  4. Step 4: Simplify right side
    89,205.60x = 11,854,246,726.08
  5. Step 5: Solve for x
    x = 11,854,246,726.08/89,205.60
  6. Step 6: Final answer
    x = 132,886.80

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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.