Home / 198,605.56-297,740.39-86,201.29

Finding the Fourth Proportional to 198,605.56, 297,740.39 and 86,201.29

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Solution

The fourth proportional to 198,605.56, 297,740.39 and 86,201.29 is: 129,229.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,605.56 : 297,740.39 = 86,201.29 : x
  2. Step 2: Convert to fraction form
    198,605.56/297,740.39 = 86,201.29/x
  3. Step 3: Cross multiply
    198,605.56x = 297,740.39 × 86,201.29
  4. Step 4: Simplify right side
    198,605.56x = 25,665,604,214.40
  5. Step 5: Solve for x
    x = 25,665,604,214.40/198,605.56
  6. Step 6: Final answer
    x = 129,229.03

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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.