Home / 130,163.80-195,245.70-108,002.20

Finding the Fourth Proportional to 130,163.80, 195,245.70 and 108,002.20

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Solution

The fourth proportional to 130,163.80, 195,245.70 and 108,002.20 is: 162,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,163.80 : 195,245.70 = 108,002.20 : x
  2. Step 2: Convert to fraction form
    130,163.80/195,245.70 = 108,002.20/x
  3. Step 3: Cross multiply
    130,163.80x = 195,245.70 × 108,002.20
  4. Step 4: Simplify right side
    130,163.80x = 21,086,965,140.54
  5. Step 5: Solve for x
    x = 21,086,965,140.54/130,163.80
  6. Step 6: Final answer
    x = 162,003.30

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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.