Home / 198,777.98-274,318.62-108,139.04

Finding the Fourth Proportional to 198,777.98, 274,318.62 and 108,139.04

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Solution

The fourth proportional to 198,777.98, 274,318.62 and 108,139.04 is: 149,234.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,777.98 : 274,318.62 = 108,139.04 : x
  2. Step 2: Convert to fraction form
    198,777.98/274,318.62 = 108,139.04/x
  3. Step 3: Cross multiply
    198,777.98x = 274,318.62 × 108,139.04
  4. Step 4: Simplify right side
    198,777.98x = 29,664,552,220.92
  5. Step 5: Solve for x
    x = 29,664,552,220.92/198,777.98
  6. Step 6: Final answer
    x = 149,234.60

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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.