Home / 198,211.38-297,362.46-85,910.40

Finding the Fourth Proportional to 198,211.38, 297,362.46 and 85,910.40

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Solution

The fourth proportional to 198,211.38, 297,362.46 and 85,910.40 is: 128,885.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,211.38 : 297,362.46 = 85,910.40 : x
  2. Step 2: Convert to fraction form
    198,211.38/297,362.46 = 85,910.40/x
  3. Step 3: Cross multiply
    198,211.38x = 297,362.46 × 85,910.40
  4. Step 4: Simplify right side
    198,211.38x = 25,546,527,883.58
  5. Step 5: Solve for x
    x = 25,546,527,883.58/198,211.38
  6. Step 6: Final answer
    x = 128,885.27

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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.