Home / 109,081.71-163,524.09-75,817.44

Finding the Fourth Proportional to 109,081.71, 163,524.09 and 75,817.44

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Solution

The fourth proportional to 109,081.71, 163,524.09 and 75,817.44 is: 113,657.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,081.71 : 163,524.09 = 75,817.44 : x
  2. Step 2: Convert to fraction form
    109,081.71/163,524.09 = 75,817.44/x
  3. Step 3: Cross multiply
    109,081.71x = 163,524.09 × 75,817.44
  4. Step 4: Simplify right side
    109,081.71x = 12,397,977,882.13
  5. Step 5: Solve for x
    x = 12,397,977,882.13/109,081.71
  6. Step 6: Final answer
    x = 113,657.71

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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.