Home / 106,257.22-146,650.91-80,721.56

Finding the Fourth Proportional to 106,257.22, 146,650.91 and 80,721.56

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Solution

The fourth proportional to 106,257.22, 146,650.91 and 80,721.56 is: 111,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,257.22 : 146,650.91 = 80,721.56 : x
  2. Step 2: Convert to fraction form
    106,257.22/146,650.91 = 80,721.56/x
  3. Step 3: Cross multiply
    106,257.22x = 146,650.91 × 80,721.56
  4. Step 4: Simplify right side
    106,257.22x = 11,837,890,193.64
  5. Step 5: Solve for x
    x = 11,837,890,193.64/106,257.22
  6. Step 6: Final answer
    x = 111,407.87

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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.