Home / 120,351.26-166,089.92-66,636.26

Finding the Fourth Proportional to 120,351.26, 166,089.92 and 66,636.26

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Solution

The fourth proportional to 120,351.26, 166,089.92 and 66,636.26 is: 91,960.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,351.26 : 166,089.92 = 66,636.26 : x
  2. Step 2: Convert to fraction form
    120,351.26/166,089.92 = 66,636.26/x
  3. Step 3: Cross multiply
    120,351.26x = 166,089.92 × 66,636.26
  4. Step 4: Simplify right side
    120,351.26x = 11,067,611,174.54
  5. Step 5: Solve for x
    x = 11,067,611,174.54/120,351.26
  6. Step 6: Final answer
    x = 91,960.91

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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.