Home / 140,142.92-210,089.38-51,375.70

Finding the Fourth Proportional to 140,142.92, 210,089.38 and 51,375.70

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Solution

The fourth proportional to 140,142.92, 210,089.38 and 51,375.70 is: 77,017.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,142.92 : 210,089.38 = 51,375.70 : x
  2. Step 2: Convert to fraction form
    140,142.92/210,089.38 = 51,375.70/x
  3. Step 3: Cross multiply
    140,142.92x = 210,089.38 × 51,375.70
  4. Step 4: Simplify right side
    140,142.92x = 10,793,488,960.07
  5. Step 5: Solve for x
    x = 10,793,488,960.07/140,142.92
  6. Step 6: Final answer
    x = 77,017.73

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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.