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Finding the Fourth Proportional to 140,662, 211,044.84 and 74,099.44

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Solution

The fourth proportional to 140,662, 211,044.84 and 74,099.44 is: 111,176.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,662 : 211,044.84 = 74,099.44 : x
  2. Step 2: Convert to fraction form
    140,662/211,044.84 = 74,099.44/x
  3. Step 3: Cross multiply
    140,662x = 211,044.84 × 74,099.44
  4. Step 4: Simplify right side
    140,662x = 15,638,304,458.89
  5. Step 5: Solve for x
    x = 15,638,304,458.89/140,662
  6. Step 6: Final answer
    x = 111,176.47

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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.