Home / 126,869.20-190,174.20-74,251.60

Finding the Fourth Proportional to 126,869.20, 190,174.20 and 74,251.60

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Solution

The fourth proportional to 126,869.20, 190,174.20 and 74,251.60 is: 111,301.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,869.20 : 190,174.20 = 74,251.60 : x
  2. Step 2: Convert to fraction form
    126,869.20/190,174.20 = 74,251.60/x
  3. Step 3: Cross multiply
    126,869.20x = 190,174.20 × 74,251.60
  4. Step 4: Simplify right side
    126,869.20x = 14,120,738,628.72
  5. Step 5: Solve for x
    x = 14,120,738,628.72/126,869.20
  6. Step 6: Final answer
    x = 111,301.55

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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.