Home / 126,943.20-190,414.80-74,325.60

Finding the Fourth Proportional to 126,943.20, 190,414.80 and 74,325.60

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Solution

The fourth proportional to 126,943.20, 190,414.80 and 74,325.60 is: 111,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,943.20 : 190,414.80 = 74,325.60 : x
  2. Step 2: Convert to fraction form
    126,943.20/190,414.80 = 74,325.60/x
  3. Step 3: Cross multiply
    126,943.20x = 190,414.80 × 74,325.60
  4. Step 4: Simplify right side
    126,943.20x = 14,152,694,258.88
  5. Step 5: Solve for x
    x = 14,152,694,258.88/126,943.20
  6. Step 6: Final answer
    x = 111,488.40

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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.