Home / 198,603.28-274,061.01-107,958.79

Finding the Fourth Proportional to 198,603.28, 274,061.01 and 107,958.79

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Solution

The fourth proportional to 198,603.28, 274,061.01 and 107,958.79 is: 148,976.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,603.28 : 274,061.01 = 107,958.79 : x
  2. Step 2: Convert to fraction form
    198,603.28/274,061.01 = 107,958.79/x
  3. Step 3: Cross multiply
    198,603.28x = 274,061.01 × 107,958.79
  4. Step 4: Simplify right side
    198,603.28x = 29,587,295,025.78
  5. Step 5: Solve for x
    x = 29,587,295,025.78/198,603.28
  6. Step 6: Final answer
    x = 148,976.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.