Home / 198,449.78-273,856.08-107,803.70

Finding the Fourth Proportional to 198,449.78, 273,856.08 and 107,803.70

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Solution

The fourth proportional to 198,449.78, 273,856.08 and 107,803.70 is: 148,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,449.78 : 273,856.08 = 107,803.70 : x
  2. Step 2: Convert to fraction form
    198,449.78/273,856.08 = 107,803.70/x
  3. Step 3: Cross multiply
    198,449.78x = 273,856.08 × 107,803.70
  4. Step 4: Simplify right side
    198,449.78x = 29,522,698,691.50
  5. Step 5: Solve for x
    x = 29,522,698,691.50/198,449.78
  6. Step 6: Final answer
    x = 148,766.60

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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.