Home / 198,988.29-274,608.76-108,349.21

Finding the Fourth Proportional to 198,988.29, 274,608.76 and 108,349.21

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Solution

The fourth proportional to 198,988.29, 274,608.76 and 108,349.21 is: 149,524.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,988.29 : 274,608.76 = 108,349.21 : x
  2. Step 2: Convert to fraction form
    198,988.29/274,608.76 = 108,349.21/x
  3. Step 3: Cross multiply
    198,988.29x = 274,608.76 × 108,349.21
  4. Step 4: Simplify right side
    198,988.29x = 29,753,642,175.89
  5. Step 5: Solve for x
    x = 29,753,642,175.89/198,988.29
  6. Step 6: Final answer
    x = 149,524.59

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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.