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Finding the Fourth Proportional to 131,550.60, 197,390.70 and 75,433.80

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Solution

The fourth proportional to 131,550.60, 197,390.70 and 75,433.80 is: 113,187.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,550.60 : 197,390.70 = 75,433.80 : x
  2. Step 2: Convert to fraction form
    131,550.60/197,390.70 = 75,433.80/x
  3. Step 3: Cross multiply
    131,550.60x = 197,390.70 × 75,433.80
  4. Step 4: Simplify right side
    131,550.60x = 14,889,930,585.66
  5. Step 5: Solve for x
    x = 14,889,930,585.66/131,550.60
  6. Step 6: Final answer
    x = 113,187.86

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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.