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Finding the Fourth Proportional to 169,449.39, 254,175.91 and 51,121.76

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Solution

The fourth proportional to 169,449.39, 254,175.91 and 51,121.76 is: 76,683.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,449.39 : 254,175.91 = 51,121.76 : x
  2. Step 2: Convert to fraction form
    169,449.39/254,175.91 = 51,121.76/x
  3. Step 3: Cross multiply
    169,449.39x = 254,175.91 × 51,121.76
  4. Step 4: Simplify right side
    169,449.39x = 12,993,919,868.80
  5. Step 5: Solve for x
    x = 12,993,919,868.80/169,449.39
  6. Step 6: Final answer
    x = 76,683.19

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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.