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Finding the Fourth Proportional to 89,070.60, 133,605.90 and 88,456.20

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Solution

The fourth proportional to 89,070.60, 133,605.90 and 88,456.20 is: 132,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,070.60 : 133,605.90 = 88,456.20 : x
  2. Step 2: Convert to fraction form
    89,070.60/133,605.90 = 88,456.20/x
  3. Step 3: Cross multiply
    89,070.60x = 133,605.90 × 88,456.20
  4. Step 4: Simplify right side
    89,070.60x = 11,818,270,211.58
  5. Step 5: Solve for x
    x = 11,818,270,211.58/89,070.60
  6. Step 6: Final answer
    x = 132,684.30

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1.5x scale

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.