Home / 108,720.20-163,080.30-67,248.20

Finding the Fourth Proportional to 108,720.20, 163,080.30 and 67,248.20

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Solution

The fourth proportional to 108,720.20, 163,080.30 and 67,248.20 is: 100,872.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,720.20 : 163,080.30 = 67,248.20 : x
  2. Step 2: Convert to fraction form
    108,720.20/163,080.30 = 67,248.20/x
  3. Step 3: Cross multiply
    108,720.20x = 163,080.30 × 67,248.20
  4. Step 4: Simplify right side
    108,720.20x = 10,966,856,630.46
  5. Step 5: Solve for x
    x = 10,966,856,630.46/108,720.20
  6. Step 6: Final answer
    x = 100,872.30

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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.