Home / 143,855.28-215,778.06-38,668.68

Finding the Fourth Proportional to 143,855.28, 215,778.06 and 38,668.68

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Solution

The fourth proportional to 143,855.28, 215,778.06 and 38,668.68 is: 58,001.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,855.28 : 215,778.06 = 38,668.68 : x
  2. Step 2: Convert to fraction form
    143,855.28/215,778.06 = 38,668.68/x
  3. Step 3: Cross multiply
    143,855.28x = 215,778.06 × 38,668.68
  4. Step 4: Simplify right side
    143,855.28x = 8,343,852,753.16
  5. Step 5: Solve for x
    x = 8,343,852,753.16/143,855.28
  6. Step 6: Final answer
    x = 58,001.71

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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.