Home / 166,845.12-230,249.40-91,388.88

Finding the Fourth Proportional to 166,845.12, 230,249.40 and 91,388.88

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Solution

The fourth proportional to 166,845.12, 230,249.40 and 91,388.88 is: 126,118.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,845.12 : 230,249.40 = 91,388.88 : x
  2. Step 2: Convert to fraction form
    166,845.12/230,249.40 = 91,388.88/x
  3. Step 3: Cross multiply
    166,845.12x = 230,249.40 × 91,388.88
  4. Step 4: Simplify right side
    166,845.12x = 21,042,234,786.67
  5. Step 5: Solve for x
    x = 21,042,234,786.67/166,845.12
  6. Step 6: Final answer
    x = 126,118.37

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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.