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Finding the Fourth Proportional to 133,470.70, 199,914.45 and 103,654.60

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Solution

The fourth proportional to 133,470.70, 199,914.45 and 103,654.60 is: 155,255.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,470.70 : 199,914.45 = 103,654.60 : x
  2. Step 2: Convert to fraction form
    133,470.70/199,914.45 = 103,654.60/x
  3. Step 3: Cross multiply
    133,470.70x = 199,914.45 × 103,654.60
  4. Step 4: Simplify right side
    133,470.70x = 20,722,052,348.97
  5. Step 5: Solve for x
    x = 20,722,052,348.97/133,470.70
  6. Step 6: Final answer
    x = 155,255.44

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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.