Home / 74,150.97-102,327.82-40,158.69

Finding the Fourth Proportional to 74,150.97, 102,327.82 and 40,158.69

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Solution

The fourth proportional to 74,150.97, 102,327.82 and 40,158.69 is: 55,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,150.97 : 102,327.82 = 40,158.69 : x
  2. Step 2: Convert to fraction form
    74,150.97/102,327.82 = 40,158.69/x
  3. Step 3: Cross multiply
    74,150.97x = 102,327.82 × 40,158.69
  4. Step 4: Simplify right side
    74,150.97x = 4,109,351,201.76
  5. Step 5: Solve for x
    x = 4,109,351,201.76/74,150.97
  6. Step 6: Final answer
    x = 55,418.71

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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.