Home / 198,723.54-298,085.50-80,395.88

Finding the Fourth Proportional to 198,723.54, 298,085.50 and 80,395.88

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Solution

The fourth proportional to 198,723.54, 298,085.50 and 80,395.88 is: 120,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,723.54 : 298,085.50 = 80,395.88 : x
  2. Step 2: Convert to fraction form
    198,723.54/298,085.50 = 80,395.88/x
  3. Step 3: Cross multiply
    198,723.54x = 298,085.50 × 80,395.88
  4. Step 4: Simplify right side
    198,723.54x = 23,964,846,087.74
  5. Step 5: Solve for x
    x = 23,964,846,087.74/198,723.54
  6. Step 6: Final answer
    x = 120,593.90

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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.