Home / 106,691.26-160,137.30-54,138.46

Finding the Fourth Proportional to 106,691.26, 160,137.30 and 54,138.46

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Solution

The fourth proportional to 106,691.26, 160,137.30 and 54,138.46 is: 81,258.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,691.26 : 160,137.30 = 54,138.46 : x
  2. Step 2: Convert to fraction form
    106,691.26/160,137.30 = 54,138.46/x
  3. Step 3: Cross multiply
    106,691.26x = 160,137.30 × 54,138.46
  4. Step 4: Simplify right side
    106,691.26x = 8,669,586,810.56
  5. Step 5: Solve for x
    x = 8,669,586,810.56/106,691.26
  6. Step 6: Final answer
    x = 81,258.64

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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.