Home / 198,867.39-298,262.21-74,183.55

Finding the Fourth Proportional to 198,867.39, 298,262.21 and 74,183.55

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Solution

The fourth proportional to 198,867.39, 298,262.21 and 74,183.55 is: 111,260.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,867.39 : 298,262.21 = 74,183.55 : x
  2. Step 2: Convert to fraction form
    198,867.39/298,262.21 = 74,183.55/x
  3. Step 3: Cross multiply
    198,867.39x = 298,262.21 × 74,183.55
  4. Step 4: Simplify right side
    198,867.39x = 22,126,149,197.73
  5. Step 5: Solve for x
    x = 22,126,149,197.73/198,867.39
  6. Step 6: Final answer
    x = 111,260.82

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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.