Home / 139,846.26-193,001.78-85,395.43

Finding the Fourth Proportional to 139,846.26, 193,001.78 and 85,395.43

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Solution

The fourth proportional to 139,846.26, 193,001.78 and 85,395.43 is: 117,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,846.26 : 193,001.78 = 85,395.43 : x
  2. Step 2: Convert to fraction form
    139,846.26/193,001.78 = 85,395.43/x
  3. Step 3: Cross multiply
    139,846.26x = 193,001.78 × 85,395.43
  4. Step 4: Simplify right side
    139,846.26x = 16,481,469,724.85
  5. Step 5: Solve for x
    x = 16,481,469,724.85/139,846.26
  6. Step 6: Final answer
    x = 117,854.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.