Home / 198,449.21-273,864.83-107,805.15

Finding the Fourth Proportional to 198,449.21, 273,864.83 and 107,805.15

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Solution

The fourth proportional to 198,449.21, 273,864.83 and 107,805.15 is: 148,773.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,449.21 : 273,864.83 = 107,805.15 : x
  2. Step 2: Convert to fraction form
    198,449.21/273,864.83 = 107,805.15/x
  3. Step 3: Cross multiply
    198,449.21x = 273,864.83 × 107,805.15
  4. Step 4: Simplify right side
    198,449.21x = 29,524,038,538.85
  5. Step 5: Solve for x
    x = 29,524,038,538.85/198,449.21
  6. Step 6: Final answer
    x = 148,773.78

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1.5x scale

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.