Home / 126,846.20-190,278.42-43,739

Finding the Fourth Proportional to 126,846.20, 190,278.42 and 43,739

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Solution

The fourth proportional to 126,846.20, 190,278.42 and 43,739 is: 65,611.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,846.20 : 190,278.42 = 43,739 : x
  2. Step 2: Convert to fraction form
    126,846.20/190,278.42 = 43,739/x
  3. Step 3: Cross multiply
    126,846.20x = 190,278.42 × 43,739
  4. Step 4: Simplify right side
    126,846.20x = 8,322,587,812.38
  5. Step 5: Solve for x
    x = 8,322,587,812.38/126,846.20
  6. Step 6: Final answer
    x = 65,611.64

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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.