Home / 198,496.11-297,576.80-86,091.70

Finding the Fourth Proportional to 198,496.11, 297,576.80 and 86,091.70

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Solution

The fourth proportional to 198,496.11, 297,576.80 and 86,091.70 is: 129,064.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,496.11 : 297,576.80 = 86,091.70 : x
  2. Step 2: Convert to fraction form
    198,496.11/297,576.80 = 86,091.70/x
  3. Step 3: Cross multiply
    198,496.11x = 297,576.80 × 86,091.70
  4. Step 4: Simplify right side
    198,496.11x = 25,618,892,592.56
  5. Step 5: Solve for x
    x = 25,618,892,592.56/198,496.11
  6. Step 6: Final answer
    x = 129,064.96

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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.