Home / 198,974.43-274,767.03-126,400.65

Finding the Fourth Proportional to 198,974.43, 274,767.03 and 126,400.65

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Solution

The fourth proportional to 198,974.43, 274,767.03 and 126,400.65 is: 174,548.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,974.43 : 274,767.03 = 126,400.65 : x
  2. Step 2: Convert to fraction form
    198,974.43/274,767.03 = 126,400.65/x
  3. Step 3: Cross multiply
    198,974.43x = 274,767.03 × 126,400.65
  4. Step 4: Simplify right side
    198,974.43x = 34,730,731,190.57
  5. Step 5: Solve for x
    x = 34,730,731,190.57/198,974.43
  6. Step 6: Final answer
    x = 174,548.72

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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.