Home / 198,645.75-274,131.14-109,221.75

Finding the Fourth Proportional to 198,645.75, 274,131.14 and 109,221.75

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Solution

The fourth proportional to 198,645.75, 274,131.14 and 109,221.75 is: 150,726.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,645.75 : 274,131.14 = 109,221.75 : x
  2. Step 2: Convert to fraction form
    198,645.75/274,131.14 = 109,221.75/x
  3. Step 3: Cross multiply
    198,645.75x = 274,131.14 × 109,221.75
  4. Step 4: Simplify right side
    198,645.75x = 29,941,082,840.30
  5. Step 5: Solve for x
    x = 29,941,082,840.30/198,645.75
  6. Step 6: Final answer
    x = 150,726.02

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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.