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Finding the Fourth Proportional to 133,234.60, 199,592.70 and 80,487.40

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Solution

The fourth proportional to 133,234.60, 199,592.70 and 80,487.40 is: 120,574.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,234.60 : 199,592.70 = 80,487.40 : x
  2. Step 2: Convert to fraction form
    133,234.60/199,592.70 = 80,487.40/x
  3. Step 3: Cross multiply
    133,234.60x = 199,592.70 × 80,487.40
  4. Step 4: Simplify right side
    133,234.60x = 16,064,697,481.98
  5. Step 5: Solve for x
    x = 16,064,697,481.98/133,234.60
  6. Step 6: Final answer
    x = 120,574.52

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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.