Home / 112,217.66-154,863.61-61,919.90

Finding the Fourth Proportional to 112,217.66, 154,863.61 and 61,919.90

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Solution

The fourth proportional to 112,217.66, 154,863.61 and 61,919.90 is: 85,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,217.66 : 154,863.61 = 61,919.90 : x
  2. Step 2: Convert to fraction form
    112,217.66/154,863.61 = 61,919.90/x
  3. Step 3: Cross multiply
    112,217.66x = 154,863.61 × 61,919.90
  4. Step 4: Simplify right side
    112,217.66x = 9,589,138,470.52
  5. Step 5: Solve for x
    x = 9,589,138,470.52/112,217.66
  6. Step 6: Final answer
    x = 85,451.25

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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.