Home / 198,554.48-298,190.88-123,819.92

Finding the Fourth Proportional to 198,554.48, 298,190.88 and 123,819.92

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Solution

The fourth proportional to 198,554.48, 298,190.88 and 123,819.92 is: 185,953.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,554.48 : 298,190.88 = 123,819.92 : x
  2. Step 2: Convert to fraction form
    198,554.48/298,190.88 = 123,819.92/x
  3. Step 3: Cross multiply
    198,554.48x = 298,190.88 × 123,819.92
  4. Step 4: Simplify right side
    198,554.48x = 36,921,970,906.33
  5. Step 5: Solve for x
    x = 36,921,970,906.33/198,554.48
  6. Step 6: Final answer
    x = 185,953.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.