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Finding the Fourth Proportional to 133,026.60, 199,280.70 and 80,279.40

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Solution

The fourth proportional to 133,026.60, 199,280.70 and 80,279.40 is: 120,262.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,026.60 : 199,280.70 = 80,279.40 : x
  2. Step 2: Convert to fraction form
    133,026.60/199,280.70 = 80,279.40/x
  3. Step 3: Cross multiply
    133,026.60x = 199,280.70 × 80,279.40
  4. Step 4: Simplify right side
    133,026.60x = 15,998,135,027.58
  5. Step 5: Solve for x
    x = 15,998,135,027.58/133,026.60
  6. Step 6: Final answer
    x = 120,262.68

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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.