Home / 198,082.80-296,968.68-135,563.76

Finding the Fourth Proportional to 198,082.80, 296,968.68 and 135,563.76

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Solution

The fourth proportional to 198,082.80, 296,968.68 and 135,563.76 is: 203,239.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,082.80 : 296,968.68 = 135,563.76 : x
  2. Step 2: Convert to fraction form
    198,082.80/296,968.68 = 135,563.76/x
  3. Step 3: Cross multiply
    198,082.80x = 296,968.68 × 135,563.76
  4. Step 4: Simplify right side
    198,082.80x = 40,258,190,863.04
  5. Step 5: Solve for x
    x = 40,258,190,863.04/198,082.80
  6. Step 6: Final answer
    x = 203,239.21

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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.