Home / 198,819.10-274,362.14-108,175.43

Finding the Fourth Proportional to 198,819.10, 274,362.14 and 108,175.43

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Solution

The fourth proportional to 198,819.10, 274,362.14 and 108,175.43 is: 149,277.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,819.10 : 274,362.14 = 108,175.43 : x
  2. Step 2: Convert to fraction form
    198,819.10/274,362.14 = 108,175.43/x
  3. Step 3: Cross multiply
    198,819.10x = 274,362.14 × 108,175.43
  4. Step 4: Simplify right side
    198,819.10x = 29,679,241,368.85
  5. Step 5: Solve for x
    x = 29,679,241,368.85/198,819.10
  6. Step 6: Final answer
    x = 149,277.62

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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.