Home / 198,778.07-274,310.91-108,134.73

Finding the Fourth Proportional to 198,778.07, 274,310.91 and 108,134.73

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Solution

The fourth proportional to 198,778.07, 274,310.91 and 108,134.73 is: 149,224.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,778.07 : 274,310.91 = 108,134.73 : x
  2. Step 2: Convert to fraction form
    198,778.07/274,310.91 = 108,134.73/x
  3. Step 3: Cross multiply
    198,778.07x = 274,310.91 × 108,134.73
  4. Step 4: Simplify right side
    198,778.07x = 29,662,536,188.90
  5. Step 5: Solve for x
    x = 29,662,536,188.90/198,778.07
  6. Step 6: Final answer
    x = 149,224.39

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1.5x scale

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.