Home / 198,147.23-297,243.39-71,846.96

Finding the Fourth Proportional to 198,147.23, 297,243.39 and 71,846.96

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Solution

The fourth proportional to 198,147.23, 297,243.39 and 71,846.96 is: 107,778.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,147.23 : 297,243.39 = 71,846.96 : x
  2. Step 2: Convert to fraction form
    198,147.23/297,243.39 = 71,846.96/x
  3. Step 3: Cross multiply
    198,147.23x = 297,243.39 × 71,846.96
  4. Step 4: Simplify right side
    198,147.23x = 21,356,033,951.59
  5. Step 5: Solve for x
    x = 21,356,033,951.59/198,147.23
  6. Step 6: Final answer
    x = 107,778.61

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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.