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Finding the Fourth Proportional to 121,357.44, 167,474.06 and 67,645.88

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Solution

The fourth proportional to 121,357.44, 167,474.06 and 67,645.88 is: 93,351.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,357.44 : 167,474.06 = 67,645.88 : x
  2. Step 2: Convert to fraction form
    121,357.44/167,474.06 = 67,645.88/x
  3. Step 3: Cross multiply
    121,357.44x = 167,474.06 × 67,645.88
  4. Step 4: Simplify right side
    121,357.44x = 11,328,930,165.87
  5. Step 5: Solve for x
    x = 11,328,930,165.87/121,357.44
  6. Step 6: Final answer
    x = 93,351.76

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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.