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Finding the Fourth Proportional to 140,304.96, 210,540.41 and 51,620.69

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Solution

The fourth proportional to 140,304.96, 210,540.41 and 51,620.69 is: 77,461.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,304.96 : 210,540.41 = 51,620.69 : x
  2. Step 2: Convert to fraction form
    140,304.96/210,540.41 = 51,620.69/x
  3. Step 3: Cross multiply
    140,304.96x = 210,540.41 × 51,620.69
  4. Step 4: Simplify right side
    140,304.96x = 10,868,239,926.28
  5. Step 5: Solve for x
    x = 10,868,239,926.28/140,304.96
  6. Step 6: Final answer
    x = 77,461.55

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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.