Home / 198,912.34-298,131.17-138,614.18

Finding the Fourth Proportional to 198,912.34, 298,131.17 and 138,614.18

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Solution

The fourth proportional to 198,912.34, 298,131.17 and 138,614.18 is: 207,755.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,912.34 : 298,131.17 = 138,614.18 : x
  2. Step 2: Convert to fraction form
    198,912.34/298,131.17 = 138,614.18/x
  3. Step 3: Cross multiply
    198,912.34x = 298,131.17 × 138,614.18
  4. Step 4: Simplify right side
    198,912.34x = 41,325,207,661.99
  5. Step 5: Solve for x
    x = 41,325,207,661.99/198,912.34
  6. Step 6: Final answer
    x = 207,755.88

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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.