Home / 198,889.11-298,334.48-80,562.69

Finding the Fourth Proportional to 198,889.11, 298,334.48 and 80,562.69

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Solution

The fourth proportional to 198,889.11, 298,334.48 and 80,562.69 is: 120,844.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,889.11 : 298,334.48 = 80,562.69 : x
  2. Step 2: Convert to fraction form
    198,889.11/298,334.48 = 80,562.69/x
  3. Step 3: Cross multiply
    198,889.11x = 298,334.48 × 80,562.69
  4. Step 4: Simplify right side
    198,889.11x = 24,034,627,825.74
  5. Step 5: Solve for x
    x = 24,034,627,825.74/198,889.11
  6. Step 6: Final answer
    x = 120,844.36

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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.