Home / 198,776.82-274,311.28-108,131.14

Finding the Fourth Proportional to 198,776.82, 274,311.28 and 108,131.14

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Solution

The fourth proportional to 198,776.82, 274,311.28 and 108,131.14 is: 149,220.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,776.82 : 274,311.28 = 108,131.14 : x
  2. Step 2: Convert to fraction form
    198,776.82/274,311.28 = 108,131.14/x
  3. Step 3: Cross multiply
    198,776.82x = 274,311.28 × 108,131.14
  4. Step 4: Simplify right side
    198,776.82x = 29,661,591,421.26
  5. Step 5: Solve for x
    x = 29,661,591,421.26/198,776.82
  6. Step 6: Final answer
    x = 149,220.58

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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.