Home / 166,121.82-229,247.82-90,670.32

Finding the Fourth Proportional to 166,121.82, 229,247.82 and 90,670.32

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Solution

The fourth proportional to 166,121.82, 229,247.82 and 90,670.32 is: 125,124.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,121.82 : 229,247.82 = 90,670.32 : x
  2. Step 2: Convert to fraction form
    166,121.82/229,247.82 = 90,670.32/x
  3. Step 3: Cross multiply
    166,121.82x = 229,247.82 × 90,670.32
  4. Step 4: Simplify right side
    166,121.82x = 20,785,973,198.70
  5. Step 5: Solve for x
    x = 20,785,973,198.70/166,121.82
  6. Step 6: Final answer
    x = 125,124.88

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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.