Home / 198,591.34-298,099.23-80,339.98

Finding the Fourth Proportional to 198,591.34, 298,099.23 and 80,339.98

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Solution

The fourth proportional to 198,591.34, 298,099.23 and 80,339.98 is: 120,595.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,591.34 : 298,099.23 = 80,339.98 : x
  2. Step 2: Convert to fraction form
    198,591.34/298,099.23 = 80,339.98/x
  3. Step 3: Cross multiply
    198,591.34x = 298,099.23 × 80,339.98
  4. Step 4: Simplify right side
    198,591.34x = 23,949,286,176.22
  5. Step 5: Solve for x
    x = 23,949,286,176.22/198,591.34
  6. Step 6: Final answer
    x = 120,595.82

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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.