Home / 198,937.11-298,406.48-80,610.69

Finding the Fourth Proportional to 198,937.11, 298,406.48 and 80,610.69

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Solution

The fourth proportional to 198,937.11, 298,406.48 and 80,610.69 is: 120,916.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,937.11 : 298,406.48 = 80,610.69 : x
  2. Step 2: Convert to fraction form
    198,937.11/298,406.48 = 80,610.69/x
  3. Step 3: Cross multiply
    198,937.11x = 298,406.48 × 80,610.69
  4. Step 4: Simplify right side
    198,937.11x = 24,054,751,850.22
  5. Step 5: Solve for x
    x = 24,054,751,850.22/198,937.11
  6. Step 6: Final answer
    x = 120,916.36

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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.