Home / 142,709.44-196,844.10-91,786.60

Finding the Fourth Proportional to 142,709.44, 196,844.10 and 91,786.60

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Solution

The fourth proportional to 142,709.44, 196,844.10 and 91,786.60 is: 126,604.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,709.44 : 196,844.10 = 91,786.60 : x
  2. Step 2: Convert to fraction form
    142,709.44/196,844.10 = 91,786.60/x
  3. Step 3: Cross multiply
    142,709.44x = 196,844.10 × 91,786.60
  4. Step 4: Simplify right side
    142,709.44x = 18,067,649,500.60
  5. Step 5: Solve for x
    x = 18,067,649,500.60/142,709.44
  6. Step 6: Final answer
    x = 126,604.45

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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.