Home / 198,705.28-274,215.12-108,062.10

Finding the Fourth Proportional to 198,705.28, 274,215.12 and 108,062.10

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Solution

The fourth proportional to 198,705.28, 274,215.12 and 108,062.10 is: 149,126.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,705.28 : 274,215.12 = 108,062.10 : x
  2. Step 2: Convert to fraction form
    198,705.28/274,215.12 = 108,062.10/x
  3. Step 3: Cross multiply
    198,705.28x = 274,215.12 × 108,062.10
  4. Step 4: Simplify right side
    198,705.28x = 29,632,261,718.95
  5. Step 5: Solve for x
    x = 29,632,261,718.95/198,705.28
  6. Step 6: Final answer
    x = 149,126.70

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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.