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Finding the Fourth Proportional to 133,845.43, 200,500.44 and 80,507.95

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Solution

The fourth proportional to 133,845.43, 200,500.44 and 80,507.95 is: 120,600.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,845.43 : 200,500.44 = 80,507.95 : x
  2. Step 2: Convert to fraction form
    133,845.43/200,500.44 = 80,507.95/x
  3. Step 3: Cross multiply
    133,845.43x = 200,500.44 × 80,507.95
  4. Step 4: Simplify right side
    133,845.43x = 16,141,879,398.50
  5. Step 5: Solve for x
    x = 16,141,879,398.50/133,845.43
  6. Step 6: Final answer
    x = 120,600.90

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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.