Home / 198,819.86-274,363.17-108,176.18

Finding the Fourth Proportional to 198,819.86, 274,363.17 and 108,176.18

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Solution

The fourth proportional to 198,819.86, 274,363.17 and 108,176.18 is: 149,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,819.86 : 274,363.17 = 108,176.18 : x
  2. Step 2: Convert to fraction form
    198,819.86/274,363.17 = 108,176.18/x
  3. Step 3: Cross multiply
    198,819.86x = 274,363.17 × 108,176.18
  4. Step 4: Simplify right side
    198,819.86x = 29,679,558,291.47
  5. Step 5: Solve for x
    x = 29,679,558,291.47/198,819.86
  6. Step 6: Final answer
    x = 149,278.64

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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.