Home / 121,644.93-167,948.99-108,876

Finding the Fourth Proportional to 121,644.93, 167,948.99 and 108,876

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Solution

The fourth proportional to 121,644.93, 167,948.99 and 108,876 is: 150,319.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,644.93 : 167,948.99 = 108,876 : x
  2. Step 2: Convert to fraction form
    121,644.93/167,948.99 = 108,876/x
  3. Step 3: Cross multiply
    121,644.93x = 167,948.99 × 108,876
  4. Step 4: Simplify right side
    121,644.93x = 18,285,614,235.24
  5. Step 5: Solve for x
    x = 18,285,614,235.24/121,644.93
  6. Step 6: Final answer
    x = 150,319.58

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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.