Home / 198,351.28-297,526.31-71,991.38

Finding the Fourth Proportional to 198,351.28, 297,526.31 and 71,991.38

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Solution

The fourth proportional to 198,351.28, 297,526.31 and 71,991.38 is: 107,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,351.28 : 297,526.31 = 71,991.38 : x
  2. Step 2: Convert to fraction form
    198,351.28/297,526.31 = 71,991.38/x
  3. Step 3: Cross multiply
    198,351.28x = 297,526.31 × 71,991.38
  4. Step 4: Simplify right side
    198,351.28x = 21,419,330,701.99
  5. Step 5: Solve for x
    x = 21,419,330,701.99/198,351.28
  6. Step 6: Final answer
    x = 107,986.85

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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.