Home / 198,987.08-274,608.90-108,346.56

Finding the Fourth Proportional to 198,987.08, 274,608.90 and 108,346.56

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Solution

The fourth proportional to 198,987.08, 274,608.90 and 108,346.56 is: 149,521.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,987.08 : 274,608.90 = 108,346.56 : x
  2. Step 2: Convert to fraction form
    198,987.08/274,608.90 = 108,346.56/x
  3. Step 3: Cross multiply
    198,987.08x = 274,608.90 × 108,346.56
  4. Step 4: Simplify right side
    198,987.08x = 29,752,929,660.38
  5. Step 5: Solve for x
    x = 29,752,929,660.38/198,987.08
  6. Step 6: Final answer
    x = 149,521.92

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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.