Home / 123,778.20-185,576.24-39,489.86

Finding the Fourth Proportional to 123,778.20, 185,576.24 and 39,489.86

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Solution

The fourth proportional to 123,778.20, 185,576.24 and 39,489.86 is: 59,205.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,778.20 : 185,576.24 = 39,489.86 : x
  2. Step 2: Convert to fraction form
    123,778.20/185,576.24 = 39,489.86/x
  3. Step 3: Cross multiply
    123,778.20x = 185,576.24 × 39,489.86
  4. Step 4: Simplify right side
    123,778.20x = 7,328,378,611.60
  5. Step 5: Solve for x
    x = 7,328,378,611.60/123,778.20
  6. Step 6: Final answer
    x = 59,205.73

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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.