Home / 106,139.11-146,471.97-58,391.43

Finding the Fourth Proportional to 106,139.11, 146,471.97 and 58,391.43

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Solution

The fourth proportional to 106,139.11, 146,471.97 and 58,391.43 is: 80,580.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,139.11 : 146,471.97 = 58,391.43 : x
  2. Step 2: Convert to fraction form
    106,139.11/146,471.97 = 58,391.43/x
  3. Step 3: Cross multiply
    106,139.11x = 146,471.97 × 58,391.43
  4. Step 4: Simplify right side
    106,139.11x = 8,552,708,112.59
  5. Step 5: Solve for x
    x = 8,552,708,112.59/106,139.11
  6. Step 6: Final answer
    x = 80,580.18

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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.