Home / 143,615.80-215,425.26-50,121.88

Finding the Fourth Proportional to 143,615.80, 215,425.26 and 50,121.88

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Solution

The fourth proportional to 143,615.80, 215,425.26 and 50,121.88 is: 75,183.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,615.80 : 215,425.26 = 50,121.88 : x
  2. Step 2: Convert to fraction form
    143,615.80/215,425.26 = 50,121.88/x
  3. Step 3: Cross multiply
    143,615.80x = 215,425.26 × 50,121.88
  4. Step 4: Simplify right side
    143,615.80x = 10,797,519,030.69
  5. Step 5: Solve for x
    x = 10,797,519,030.69/143,615.80
  6. Step 6: Final answer
    x = 75,183.36

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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.