Home / 198,766.31-274,294.82-108,120.35

Finding the Fourth Proportional to 198,766.31, 274,294.82 and 108,120.35

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Solution

The fourth proportional to 198,766.31, 274,294.82 and 108,120.35 is: 149,204.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,766.31 : 274,294.82 = 108,120.35 : x
  2. Step 2: Convert to fraction form
    198,766.31/274,294.82 = 108,120.35/x
  3. Step 3: Cross multiply
    198,766.31x = 274,294.82 × 108,120.35
  4. Step 4: Simplify right side
    198,766.31x = 29,656,852,897.62
  5. Step 5: Solve for x
    x = 29,656,852,897.62/198,766.31
  6. Step 6: Final answer
    x = 149,204.63

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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.