Home / 198,728.19-274,248.44-108,086.15

Finding the Fourth Proportional to 198,728.19, 274,248.44 and 108,086.15

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Solution

The fourth proportional to 198,728.19, 274,248.44 and 108,086.15 is: 149,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,728.19 : 274,248.44 = 108,086.15 : x
  2. Step 2: Convert to fraction form
    198,728.19/274,248.44 = 108,086.15/x
  3. Step 3: Cross multiply
    198,728.19x = 274,248.44 × 108,086.15
  4. Step 4: Simplify right side
    198,728.19x = 29,642,456,111.43
  5. Step 5: Solve for x
    x = 29,642,456,111.43/198,728.19
  6. Step 6: Final answer
    x = 149,160.80

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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.