Home / 198,901.20-298,092.60-80,475.60

Finding the Fourth Proportional to 198,901.20, 298,092.60 and 80,475.60

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Solution

The fourth proportional to 198,901.20, 298,092.60 and 80,475.60 is: 120,608.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,901.20 : 298,092.60 = 80,475.60 : x
  2. Step 2: Convert to fraction form
    198,901.20/298,092.60 = 80,475.60/x
  3. Step 3: Cross multiply
    198,901.20x = 298,092.60 × 80,475.60
  4. Step 4: Simplify right side
    198,901.20x = 23,989,180,840.56
  5. Step 5: Solve for x
    x = 23,989,180,840.56/198,901.20
  6. Step 6: Final answer
    x = 120,608.53

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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.