Home / 108,610.20-162,915.30-67,080.60

Finding the Fourth Proportional to 108,610.20, 162,915.30 and 67,080.60

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Solution

The fourth proportional to 108,610.20, 162,915.30 and 67,080.60 is: 100,620.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,610.20 : 162,915.30 = 67,080.60 : x
  2. Step 2: Convert to fraction form
    108,610.20/162,915.30 = 67,080.60/x
  3. Step 3: Cross multiply
    108,610.20x = 162,915.30 × 67,080.60
  4. Step 4: Simplify right side
    108,610.20x = 10,928,456,073.18
  5. Step 5: Solve for x
    x = 10,928,456,073.18/108,610.20
  6. Step 6: Final answer
    x = 100,620.90

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1.5x scale

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.