Home / 198,510.24-297,597.89-86,105.83

Finding the Fourth Proportional to 198,510.24, 297,597.89 and 86,105.83

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Solution

The fourth proportional to 198,510.24, 297,597.89 and 86,105.83 is: 129,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,510.24 : 297,597.89 = 86,105.83 : x
  2. Step 2: Convert to fraction form
    198,510.24/297,597.89 = 86,105.83/x
  3. Step 3: Cross multiply
    198,510.24x = 297,597.89 × 86,105.83
  4. Step 4: Simplify right side
    198,510.24x = 25,624,913,324.70
  5. Step 5: Solve for x
    x = 25,624,913,324.70/198,510.24
  6. Step 6: Final answer
    x = 129,086.10

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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.