Home / 121,540.74-167,734.62-67,836.24

Finding the Fourth Proportional to 121,540.74, 167,734.62 and 67,836.24

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Solution

The fourth proportional to 121,540.74, 167,734.62 and 67,836.24 is: 93,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,540.74 : 167,734.62 = 67,836.24 : x
  2. Step 2: Convert to fraction form
    121,540.74/167,734.62 = 67,836.24/x
  3. Step 3: Cross multiply
    121,540.74x = 167,734.62 × 67,836.24
  4. Step 4: Simplify right side
    121,540.74x = 11,378,485,938.63
  5. Step 5: Solve for x
    x = 11,378,485,938.63/121,540.74
  6. Step 6: Final answer
    x = 93,618.70

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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.