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Finding the Fourth Proportional to 88,686.60, 133,073.10 and 67,619.40

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Solution

The fourth proportional to 88,686.60, 133,073.10 and 67,619.40 is: 101,462.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,686.60 : 133,073.10 = 67,619.40 : x
  2. Step 2: Convert to fraction form
    88,686.60/133,073.10 = 67,619.40/x
  3. Step 3: Cross multiply
    88,686.60x = 133,073.10 × 67,619.40
  4. Step 4: Simplify right side
    88,686.60x = 8,998,323,178.14
  5. Step 5: Solve for x
    x = 8,998,323,178.14/88,686.60
  6. Step 6: Final answer
    x = 101,462.04

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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.