Home / 198,793.07-298,188.21-80,462.70

Finding the Fourth Proportional to 198,793.07, 298,188.21 and 80,462.70

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Solution

The fourth proportional to 198,793.07, 298,188.21 and 80,462.70 is: 120,693.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,793.07 : 298,188.21 = 80,462.70 : x
  2. Step 2: Convert to fraction form
    198,793.07/298,188.21 = 80,462.70/x
  3. Step 3: Cross multiply
    198,793.07x = 298,188.21 × 80,462.70
  4. Step 4: Simplify right side
    198,793.07x = 23,993,028,484.77
  5. Step 5: Solve for x
    x = 23,993,028,484.77/198,793.07
  6. Step 6: Final answer
    x = 120,693.49

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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.