Home / 198,819.35-274,362.49-108,175.68

Finding the Fourth Proportional to 198,819.35, 274,362.49 and 108,175.68

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Solution

The fourth proportional to 198,819.35, 274,362.49 and 108,175.68 is: 149,277.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,819.35 : 274,362.49 = 108,175.68 : x
  2. Step 2: Convert to fraction form
    198,819.35/274,362.49 = 108,175.68/x
  3. Step 3: Cross multiply
    198,819.35x = 274,362.49 × 108,175.68
  4. Step 4: Simplify right side
    198,819.35x = 29,679,347,279.99
  5. Step 5: Solve for x
    x = 29,679,347,279.99/198,819.35
  6. Step 6: Final answer
    x = 149,277.96

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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.