Home / 198,302.28-297,562.56-85,983.36

Finding the Fourth Proportional to 198,302.28, 297,562.56 and 85,983.36

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Solution

The fourth proportional to 198,302.28, 297,562.56 and 85,983.36 is: 129,022.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,302.28 : 297,562.56 = 85,983.36 : x
  2. Step 2: Convert to fraction form
    198,302.28/297,562.56 = 85,983.36/x
  3. Step 3: Cross multiply
    198,302.28x = 297,562.56 × 85,983.36
  4. Step 4: Simplify right side
    198,302.28x = 25,585,428,719.00
  5. Step 5: Solve for x
    x = 25,585,428,719.00/198,302.28
  6. Step 6: Final answer
    x = 129,022.36

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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.