Home / 123,375.50-185,064.77-43,415.86

Finding the Fourth Proportional to 123,375.50, 185,064.77 and 43,415.86

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Solution

The fourth proportional to 123,375.50, 185,064.77 and 43,415.86 is: 65,124.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,375.50 : 185,064.77 = 43,415.86 : x
  2. Step 2: Convert to fraction form
    123,375.50/185,064.77 = 43,415.86/x
  3. Step 3: Cross multiply
    123,375.50x = 185,064.77 × 43,415.86
  4. Step 4: Simplify right side
    123,375.50x = 8,034,745,002.85
  5. Step 5: Solve for x
    x = 8,034,745,002.85/123,375.50
  6. Step 6: Final answer
    x = 65,124.32

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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.