Home / 110,538.90-165,711.15-66,183.30

Finding the Fourth Proportional to 110,538.90, 165,711.15 and 66,183.30

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Solution

The fourth proportional to 110,538.90, 165,711.15 and 66,183.30 is: 99,216.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,538.90 : 165,711.15 = 66,183.30 : x
  2. Step 2: Convert to fraction form
    110,538.90/165,711.15 = 66,183.30/x
  3. Step 3: Cross multiply
    110,538.90x = 165,711.15 × 66,183.30
  4. Step 4: Simplify right side
    110,538.90x = 10,967,310,753.80
  5. Step 5: Solve for x
    x = 10,967,310,753.80/110,538.90
  6. Step 6: Final answer
    x = 99,216.75

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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.