Home / 140,747.88-211,143.78-47,275.56

Finding the Fourth Proportional to 140,747.88, 211,143.78 and 47,275.56

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Solution

The fourth proportional to 140,747.88, 211,143.78 and 47,275.56 is: 70,920.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,747.88 : 211,143.78 = 47,275.56 : x
  2. Step 2: Convert to fraction form
    140,747.88/211,143.78 = 47,275.56/x
  3. Step 3: Cross multiply
    140,747.88x = 211,143.78 × 47,275.56
  4. Step 4: Simplify right side
    140,747.88x = 9,981,940,440.02
  5. Step 5: Solve for x
    x = 9,981,940,440.02/140,747.88
  6. Step 6: Final answer
    x = 70,920.72

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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.