Home / 198,526.62-297,789.22-86,192.18

Finding the Fourth Proportional to 198,526.62, 297,789.22 and 86,192.18

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Solution

The fourth proportional to 198,526.62, 297,789.22 and 86,192.18 is: 129,287.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,526.62 : 297,789.22 = 86,192.18 : x
  2. Step 2: Convert to fraction form
    198,526.62/297,789.22 = 86,192.18/x
  3. Step 3: Cross multiply
    198,526.62x = 297,789.22 × 86,192.18
  4. Step 4: Simplify right side
    198,526.62x = 25,667,102,052.30
  5. Step 5: Solve for x
    x = 25,667,102,052.30/198,526.62
  6. Step 6: Final answer
    x = 129,287.96

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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.