Home / 126,843.20-190,135.20-74,225.60

Finding the Fourth Proportional to 126,843.20, 190,135.20 and 74,225.60

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Solution

The fourth proportional to 126,843.20, 190,135.20 and 74,225.60 is: 111,262.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,843.20 : 190,135.20 = 74,225.60 : x
  2. Step 2: Convert to fraction form
    126,843.20/190,135.20 = 74,225.60/x
  3. Step 3: Cross multiply
    126,843.20x = 190,135.20 × 74,225.60
  4. Step 4: Simplify right side
    126,843.20x = 14,112,899,301.12
  5. Step 5: Solve for x
    x = 14,112,899,301.12/126,843.20
  6. Step 6: Final answer
    x = 111,262.56

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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.