Home / 106,040.11-159,043.66-68,863.75

Finding the Fourth Proportional to 106,040.11, 159,043.66 and 68,863.75

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Solution

The fourth proportional to 106,040.11, 159,043.66 and 68,863.75 is: 103,284.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,040.11 : 159,043.66 = 68,863.75 : x
  2. Step 2: Convert to fraction form
    106,040.11/159,043.66 = 68,863.75/x
  3. Step 3: Cross multiply
    106,040.11x = 159,043.66 × 68,863.75
  4. Step 4: Simplify right side
    106,040.11x = 10,952,342,841.33
  5. Step 5: Solve for x
    x = 10,952,342,841.33/106,040.11
  6. Step 6: Final answer
    x = 103,284.91

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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.