Home / 198,820.85-274,364.56-108,177.18

Finding the Fourth Proportional to 198,820.85, 274,364.56 and 108,177.18

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Solution

The fourth proportional to 198,820.85, 274,364.56 and 108,177.18 is: 149,280.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,820.85 : 274,364.56 = 108,177.18 : x
  2. Step 2: Convert to fraction form
    198,820.85/274,364.56 = 108,177.18/x
  3. Step 3: Cross multiply
    198,820.85x = 274,364.56 × 108,177.18
  4. Step 4: Simplify right side
    198,820.85x = 29,679,984,392.74
  5. Step 5: Solve for x
    x = 29,679,984,392.74/198,820.85
  6. Step 6: Final answer
    x = 149,280.04

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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.