Home / 108,519.20-162,778.80-67,047.20

Finding the Fourth Proportional to 108,519.20, 162,778.80 and 67,047.20

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Solution

The fourth proportional to 108,519.20, 162,778.80 and 67,047.20 is: 100,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,519.20 : 162,778.80 = 67,047.20 : x
  2. Step 2: Convert to fraction form
    108,519.20/162,778.80 = 67,047.20/x
  3. Step 3: Cross multiply
    108,519.20x = 162,778.80 × 67,047.20
  4. Step 4: Simplify right side
    108,519.20x = 10,913,862,759.36
  5. Step 5: Solve for x
    x = 10,913,862,759.36/108,519.20
  6. Step 6: Final answer
    x = 100,570.80

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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.