Home / 126,883.20-190,187.46-82,541.64

Finding the Fourth Proportional to 126,883.20, 190,187.46 and 82,541.64

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Solution

The fourth proportional to 126,883.20, 190,187.46 and 82,541.64 is: 123,723.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,883.20 : 190,187.46 = 82,541.64 : x
  2. Step 2: Convert to fraction form
    126,883.20/190,187.46 = 82,541.64/x
  3. Step 3: Cross multiply
    126,883.20x = 190,187.46 × 82,541.64
  4. Step 4: Simplify right side
    126,883.20x = 15,698,384,855.83
  5. Step 5: Solve for x
    x = 15,698,384,855.83/126,883.20
  6. Step 6: Final answer
    x = 123,723.12

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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.