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Finding the Fourth Proportional to 75,143.92, 103,697.24 and 41,151.78

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Solution

The fourth proportional to 75,143.92, 103,697.24 and 41,151.78 is: 56,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,143.92 : 103,697.24 = 41,151.78 : x
  2. Step 2: Convert to fraction form
    75,143.92/103,697.24 = 41,151.78/x
  3. Step 3: Cross multiply
    75,143.92x = 103,697.24 × 41,151.78
  4. Step 4: Simplify right side
    75,143.92x = 4,267,326,007.09
  5. Step 5: Solve for x
    x = 4,267,326,007.09/75,143.92
  6. Step 6: Final answer
    x = 56,788.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.