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Finding the Fourth Proportional to 169,326.60, 254,097.90 and 80,680.20

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Solution

The fourth proportional to 169,326.60, 254,097.90 and 80,680.20 is: 121,071.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,326.60 : 254,097.90 = 80,680.20 : x
  2. Step 2: Convert to fraction form
    169,326.60/254,097.90 = 80,680.20/x
  3. Step 3: Cross multiply
    169,326.60x = 254,097.90 × 80,680.20
  4. Step 4: Simplify right side
    169,326.60x = 20,500,669,391.58
  5. Step 5: Solve for x
    x = 20,500,669,391.58/169,326.60
  6. Step 6: Final answer
    x = 121,071.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.