Home / 198,961.22-298,432.11-74,292.50

Finding the Fourth Proportional to 198,961.22, 298,432.11 and 74,292.50

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Solution

The fourth proportional to 198,961.22, 298,432.11 and 74,292.50 is: 111,435.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,961.22 : 298,432.11 = 74,292.50 : x
  2. Step 2: Convert to fraction form
    198,961.22/298,432.11 = 74,292.50/x
  3. Step 3: Cross multiply
    198,961.22x = 298,432.11 × 74,292.50
  4. Step 4: Simplify right side
    198,961.22x = 22,171,267,532.18
  5. Step 5: Solve for x
    x = 22,171,267,532.18/198,961.22
  6. Step 6: Final answer
    x = 111,435.12

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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.