Home / 198,891.08-298,336.62-80,480.96

Finding the Fourth Proportional to 198,891.08, 298,336.62 and 80,480.96

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Solution

The fourth proportional to 198,891.08, 298,336.62 and 80,480.96 is: 120,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,891.08 : 298,336.62 = 80,480.96 : x
  2. Step 2: Convert to fraction form
    198,891.08/298,336.62 = 80,480.96/x
  3. Step 3: Cross multiply
    198,891.08x = 298,336.62 × 80,480.96
  4. Step 4: Simplify right side
    198,891.08x = 24,010,417,580.76
  5. Step 5: Solve for x
    x = 24,010,417,580.76/198,891.08
  6. Step 6: Final answer
    x = 120,721.44

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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.