Home / 126,836.20-190,283.10-74,218.60

Finding the Fourth Proportional to 126,836.20, 190,283.10 and 74,218.60

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Solution

The fourth proportional to 126,836.20, 190,283.10 and 74,218.60 is: 111,344.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,836.20 : 190,283.10 = 74,218.60 : x
  2. Step 2: Convert to fraction form
    126,836.20/190,283.10 = 74,218.60/x
  3. Step 3: Cross multiply
    126,836.20x = 190,283.10 × 74,218.60
  4. Step 4: Simplify right side
    126,836.20x = 14,122,545,285.66
  5. Step 5: Solve for x
    x = 14,122,545,285.66/126,836.20
  6. Step 6: Final answer
    x = 111,344.75

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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.