Home / 198,340.20-297,680.40-80,096.40

Finding the Fourth Proportional to 198,340.20, 297,680.40 and 80,096.40

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Solution

The fourth proportional to 198,340.20, 297,680.40 and 80,096.40 is: 120,213.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,340.20 : 297,680.40 = 80,096.40 : x
  2. Step 2: Convert to fraction form
    198,340.20/297,680.40 = 80,096.40/x
  3. Step 3: Cross multiply
    198,340.20x = 297,680.40 × 80,096.40
  4. Step 4: Simplify right side
    198,340.20x = 23,843,128,390.56
  5. Step 5: Solve for x
    x = 23,843,128,390.56/198,340.20
  6. Step 6: Final answer
    x = 120,213.29

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1.5x scale

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.