Home / 198,918.86-298,395.97-56,761.43

Finding the Fourth Proportional to 198,918.86, 298,395.97 and 56,761.43

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Solution

The fourth proportional to 198,918.86, 298,395.97 and 56,761.43 is: 85,147.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,918.86 : 298,395.97 = 56,761.43 : x
  2. Step 2: Convert to fraction form
    198,918.86/298,395.97 = 56,761.43/x
  3. Step 3: Cross multiply
    198,918.86x = 298,395.97 × 56,761.43
  4. Step 4: Simplify right side
    198,918.86x = 16,937,380,329.55
  5. Step 5: Solve for x
    x = 16,937,380,329.55/198,918.86
  6. Step 6: Final answer
    x = 85,147.18

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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.