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Finding the Fourth Proportional to 199,470.80, 275,229.39 and 126,902.50

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Solution

The fourth proportional to 199,470.80, 275,229.39 and 126,902.50 is: 175,099.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,470.80 : 275,229.39 = 126,902.50 : x
  2. Step 2: Convert to fraction form
    199,470.80/275,229.39 = 126,902.50/x
  3. Step 3: Cross multiply
    199,470.80x = 275,229.39 × 126,902.50
  4. Step 4: Simplify right side
    199,470.80x = 34,927,297,452.29
  5. Step 5: Solve for x
    x = 34,927,297,452.29/199,470.80
  6. Step 6: Final answer
    x = 175,099.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.