Home / 198,190.55-297,331.23-85,889.62

Finding the Fourth Proportional to 198,190.55, 297,331.23 and 85,889.62

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Solution

The fourth proportional to 198,190.55, 297,331.23 and 85,889.62 is: 128,854.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,190.55 : 297,331.23 = 85,889.62 : x
  2. Step 2: Convert to fraction form
    198,190.55/297,331.23 = 85,889.62/x
  3. Step 3: Cross multiply
    198,190.55x = 297,331.23 × 85,889.62
  4. Step 4: Simplify right side
    198,190.55x = 25,537,664,872.18
  5. Step 5: Solve for x
    x = 25,537,664,872.18/198,190.55
  6. Step 6: Final answer
    x = 128,854.10

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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.