Home / 142,550.20-213,872.81-47,789.76

Finding the Fourth Proportional to 142,550.20, 213,872.81 and 47,789.76

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Solution

The fourth proportional to 142,550.20, 213,872.81 and 47,789.76 is: 71,700.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,550.20 : 213,872.81 = 47,789.76 : x
  2. Step 2: Convert to fraction form
    142,550.20/213,872.81 = 47,789.76/x
  3. Step 3: Cross multiply
    142,550.20x = 213,872.81 × 47,789.76
  4. Step 4: Simplify right side
    142,550.20x = 10,220,930,260.43
  5. Step 5: Solve for x
    x = 10,220,930,260.43/142,550.20
  6. Step 6: Final answer
    x = 71,700.57

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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.