Home / 198,819.85-274,363.18-108,176.18

Finding the Fourth Proportional to 198,819.85, 274,363.18 and 108,176.18

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Solution

The fourth proportional to 198,819.85, 274,363.18 and 108,176.18 is: 149,278.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,819.85 : 274,363.18 = 108,176.18 : x
  2. Step 2: Convert to fraction form
    198,819.85/274,363.18 = 108,176.18/x
  3. Step 3: Cross multiply
    198,819.85x = 274,363.18 × 108,176.18
  4. Step 4: Simplify right side
    198,819.85x = 29,679,559,102.80
  5. Step 5: Solve for x
    x = 29,679,559,102.80/198,819.85
  6. Step 6: Final answer
    x = 149,278.65

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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.