Home / 295,171.57-442,713.21-81,917

Finding the Fourth Proportional to 295,171.57, 442,713.21 and 81,917

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Solution

The fourth proportional to 295,171.57, 442,713.21 and 81,917 is: 122,863.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,171.57 : 442,713.21 = 81,917 : x
  2. Step 2: Convert to fraction form
    295,171.57/442,713.21 = 81,917/x
  3. Step 3: Cross multiply
    295,171.57x = 442,713.21 × 81,917
  4. Step 4: Simplify right side
    295,171.57x = 36,265,738,023.57
  5. Step 5: Solve for x
    x = 36,265,738,023.57/295,171.57
  6. Step 6: Final answer
    x = 122,863.25

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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.