Home / 167,508.90-231,163.20-91,028.61

Finding the Fourth Proportional to 167,508.90, 231,163.20 and 91,028.61

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Solution

The fourth proportional to 167,508.90, 231,163.20 and 91,028.61 is: 125,619.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,508.90 : 231,163.20 = 91,028.61 : x
  2. Step 2: Convert to fraction form
    167,508.90/231,163.20 = 91,028.61/x
  3. Step 3: Cross multiply
    167,508.90x = 231,163.20 × 91,028.61
  4. Step 4: Simplify right side
    167,508.90x = 21,042,464,779.15
  5. Step 5: Solve for x
    x = 21,042,464,779.15/167,508.90
  6. Step 6: Final answer
    x = 125,619.98

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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.