Home / 198,618.17-297,833.61-72,169.25

Finding the Fourth Proportional to 198,618.17, 297,833.61 and 72,169.25

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Solution

The fourth proportional to 198,618.17, 297,833.61 and 72,169.25 is: 108,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,618.17 : 297,833.61 = 72,169.25 : x
  2. Step 2: Convert to fraction form
    198,618.17/297,833.61 = 72,169.25/x
  3. Step 3: Cross multiply
    198,618.17x = 297,833.61 × 72,169.25
  4. Step 4: Simplify right side
    198,618.17x = 21,494,428,258.49
  5. Step 5: Solve for x
    x = 21,494,428,258.49/198,618.17
  6. Step 6: Final answer
    x = 108,219.85

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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.