Home / 109,080.20-163,620.30-108,302.60

Finding the Fourth Proportional to 109,080.20, 163,620.30 and 108,302.60

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Solution

The fourth proportional to 109,080.20, 163,620.30 and 108,302.60 is: 162,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,080.20 : 163,620.30 = 108,302.60 : x
  2. Step 2: Convert to fraction form
    109,080.20/163,620.30 = 108,302.60/x
  3. Step 3: Cross multiply
    109,080.20x = 163,620.30 × 108,302.60
  4. Step 4: Simplify right side
    109,080.20x = 17,720,503,902.78
  5. Step 5: Solve for x
    x = 17,720,503,902.78/109,080.20
  6. Step 6: Final answer
    x = 162,453.90

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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.