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Finding the Fourth Proportional to 122,272.44, 168,742.92 and 68,554.86

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Solution

The fourth proportional to 122,272.44, 168,742.92 and 68,554.86 is: 94,609.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,272.44 : 168,742.92 = 68,554.86 : x
  2. Step 2: Convert to fraction form
    122,272.44/168,742.92 = 68,554.86/x
  3. Step 3: Cross multiply
    122,272.44x = 168,742.92 × 68,554.86
  4. Step 4: Simplify right side
    122,272.44x = 11,568,147,256.59
  5. Step 5: Solve for x
    x = 11,568,147,256.59/122,272.44
  6. Step 6: Final answer
    x = 94,609.61

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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.