Home / 166,890.36-230,309.84-91,441.56

Finding the Fourth Proportional to 166,890.36, 230,309.84 and 91,441.56

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Solution

The fourth proportional to 166,890.36, 230,309.84 and 91,441.56 is: 126,189.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,890.36 : 230,309.84 = 91,441.56 : x
  2. Step 2: Convert to fraction form
    166,890.36/230,309.84 = 91,441.56/x
  3. Step 3: Cross multiply
    166,890.36x = 230,309.84 × 91,441.56
  4. Step 4: Simplify right side
    166,890.36x = 21,059,891,052.95
  5. Step 5: Solve for x
    x = 21,059,891,052.95/166,890.36
  6. Step 6: Final answer
    x = 126,189.98

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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.