Home / 85,135.50-117,291.38-67,223.97

Finding the Fourth Proportional to 85,135.50, 117,291.38 and 67,223.97

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Solution

The fourth proportional to 85,135.50, 117,291.38 and 67,223.97 is: 92,614.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,135.50 : 117,291.38 = 67,223.97 : x
  2. Step 2: Convert to fraction form
    85,135.50/117,291.38 = 67,223.97/x
  3. Step 3: Cross multiply
    85,135.50x = 117,291.38 × 67,223.97
  4. Step 4: Simplify right side
    85,135.50x = 7,884,791,874.26
  5. Step 5: Solve for x
    x = 7,884,791,874.26/85,135.50
  6. Step 6: Final answer
    x = 92,614.62

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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.