Home / 198,678.08-274,177.17-108,033.39

Finding the Fourth Proportional to 198,678.08, 274,177.17 and 108,033.39

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Solution

The fourth proportional to 198,678.08, 274,177.17 and 108,033.39 is: 149,086.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,678.08 : 274,177.17 = 108,033.39 : x
  2. Step 2: Convert to fraction form
    198,678.08/274,177.17 = 108,033.39/x
  3. Step 3: Cross multiply
    198,678.08x = 274,177.17 × 108,033.39
  4. Step 4: Simplify right side
    198,678.08x = 29,620,290,569.00
  5. Step 5: Solve for x
    x = 29,620,290,569.00/198,678.08
  6. Step 6: Final answer
    x = 149,086.86

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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.