Home / 101,680.56-140,321.97-55,742.76

Finding the Fourth Proportional to 101,680.56, 140,321.97 and 55,742.76

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Solution

The fourth proportional to 101,680.56, 140,321.97 and 55,742.76 is: 76,926.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,680.56 : 140,321.97 = 55,742.76 : x
  2. Step 2: Convert to fraction form
    101,680.56/140,321.97 = 55,742.76/x
  3. Step 3: Cross multiply
    101,680.56x = 140,321.97 × 55,742.76
  4. Step 4: Simplify right side
    101,680.56x = 7,821,933,896.44
  5. Step 5: Solve for x
    x = 7,821,933,896.44/101,680.56
  6. Step 6: Final answer
    x = 76,926.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.