Home / 198,990.38-274,603.98-108,346.34

Finding the Fourth Proportional to 198,990.38, 274,603.98 and 108,346.34

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Solution

The fourth proportional to 198,990.38, 274,603.98 and 108,346.34 is: 149,516.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,990.38 : 274,603.98 = 108,346.34 : x
  2. Step 2: Convert to fraction form
    198,990.38/274,603.98 = 108,346.34/x
  3. Step 3: Cross multiply
    198,990.38x = 274,603.98 × 108,346.34
  4. Step 4: Simplify right side
    198,990.38x = 29,752,335,640.70
  5. Step 5: Solve for x
    x = 29,752,335,640.70/198,990.38
  6. Step 6: Final answer
    x = 149,516.46

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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.