Home / 198,200.62-297,346.32-85,899.70

Finding the Fourth Proportional to 198,200.62, 297,346.32 and 85,899.70

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Solution

The fourth proportional to 198,200.62, 297,346.32 and 85,899.70 is: 128,869.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,200.62 : 297,346.32 = 85,899.70 : x
  2. Step 2: Convert to fraction form
    198,200.62/297,346.32 = 85,899.70/x
  3. Step 3: Cross multiply
    198,200.62x = 297,346.32 × 85,899.70
  4. Step 4: Simplify right side
    198,200.62x = 25,541,959,684.10
  5. Step 5: Solve for x
    x = 25,541,959,684.10/198,200.62
  6. Step 6: Final answer
    x = 128,869.22

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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.