Home / 130,066.20-195,099.30-67,080.60

Finding the Fourth Proportional to 130,066.20, 195,099.30 and 67,080.60

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Solution

The fourth proportional to 130,066.20, 195,099.30 and 67,080.60 is: 100,620.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,066.20 : 195,099.30 = 67,080.60 : x
  2. Step 2: Convert to fraction form
    130,066.20/195,099.30 = 67,080.60/x
  3. Step 3: Cross multiply
    130,066.20x = 195,099.30 × 67,080.60
  4. Step 4: Simplify right side
    130,066.20x = 13,087,378,103.58
  5. Step 5: Solve for x
    x = 13,087,378,103.58/130,066.20
  6. Step 6: Final answer
    x = 100,620.90

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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.