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Finding the Fourth Proportional to 121,356.82, 167,473.18 and 67,645.24

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Solution

The fourth proportional to 121,356.82, 167,473.18 and 67,645.24 is: 93,350.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,356.82 : 167,473.18 = 67,645.24 : x
  2. Step 2: Convert to fraction form
    121,356.82/167,473.18 = 67,645.24/x
  3. Step 3: Cross multiply
    121,356.82x = 167,473.18 × 67,645.24
  4. Step 4: Simplify right side
    121,356.82x = 11,328,763,454.66
  5. Step 5: Solve for x
    x = 11,328,763,454.66/121,356.82
  6. Step 6: Final answer
    x = 93,350.86

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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.