Home / 166,040.40-229,138.38-90,588.90

Finding the Fourth Proportional to 166,040.40, 229,138.38 and 90,588.90

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Solution

The fourth proportional to 166,040.40, 229,138.38 and 90,588.90 is: 125,014.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,040.40 : 229,138.38 = 90,588.90 : x
  2. Step 2: Convert to fraction form
    166,040.40/229,138.38 = 90,588.90/x
  3. Step 3: Cross multiply
    166,040.40x = 229,138.38 × 90,588.90
  4. Step 4: Simplify right side
    166,040.40x = 20,757,393,791.98
  5. Step 5: Solve for x
    x = 20,757,393,791.98/166,040.40
  6. Step 6: Final answer
    x = 125,014.12

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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.