Home / 108,359.20-162,320.10-75,116.80

Finding the Fourth Proportional to 108,359.20, 162,320.10 and 75,116.80

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Solution

The fourth proportional to 108,359.20, 162,320.10 and 75,116.80 is: 112,523.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,359.20 : 162,320.10 = 75,116.80 : x
  2. Step 2: Convert to fraction form
    108,359.20/162,320.10 = 75,116.80/x
  3. Step 3: Cross multiply
    108,359.20x = 162,320.10 × 75,116.80
  4. Step 4: Simplify right side
    108,359.20x = 12,192,966,487.68
  5. Step 5: Solve for x
    x = 12,192,966,487.68/108,359.20
  6. Step 6: Final answer
    x = 112,523.59

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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.