Home / 108,360.20-162,540.30-72,930.80

Finding the Fourth Proportional to 108,360.20, 162,540.30 and 72,930.80

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Solution

The fourth proportional to 108,360.20, 162,540.30 and 72,930.80 is: 109,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,360.20 : 162,540.30 = 72,930.80 : x
  2. Step 2: Convert to fraction form
    108,360.20/162,540.30 = 72,930.80/x
  3. Step 3: Cross multiply
    108,360.20x = 162,540.30 × 72,930.80
  4. Step 4: Simplify right side
    108,360.20x = 11,854,194,111.24
  5. Step 5: Solve for x
    x = 11,854,194,111.24/108,360.20
  6. Step 6: Final answer
    x = 109,396.20

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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.