Home / 198,580.75-274,033.39-107,934.61

Finding the Fourth Proportional to 198,580.75, 274,033.39 and 107,934.61

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Solution

The fourth proportional to 198,580.75, 274,033.39 and 107,934.61 is: 148,945.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,580.75 : 274,033.39 = 107,934.61 : x
  2. Step 2: Convert to fraction form
    198,580.75/274,033.39 = 107,934.61/x
  3. Step 3: Cross multiply
    198,580.75x = 274,033.39 × 107,934.61
  4. Step 4: Simplify right side
    198,580.75x = 29,577,687,076.63
  5. Step 5: Solve for x
    x = 29,577,687,076.63/198,580.75
  6. Step 6: Final answer
    x = 148,945.39

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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.