Home / 112,691.41-155,513.68-61,704.37

Finding the Fourth Proportional to 112,691.41, 155,513.68 and 61,704.37

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Solution

The fourth proportional to 112,691.41, 155,513.68 and 61,704.37 is: 85,151.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,691.41 : 155,513.68 = 61,704.37 : x
  2. Step 2: Convert to fraction form
    112,691.41/155,513.68 = 61,704.37/x
  3. Step 3: Cross multiply
    112,691.41x = 155,513.68 × 61,704.37
  4. Step 4: Simplify right side
    112,691.41x = 9,595,873,650.78
  5. Step 5: Solve for x
    x = 9,595,873,650.78/112,691.41
  6. Step 6: Final answer
    x = 85,151.78

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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.