Home / 167,596.85-231,288.20-91,121.09

Finding the Fourth Proportional to 167,596.85, 231,288.20 and 91,121.09

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Solution

The fourth proportional to 167,596.85, 231,288.20 and 91,121.09 is: 125,749.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,596.85 : 231,288.20 = 91,121.09 : x
  2. Step 2: Convert to fraction form
    167,596.85/231,288.20 = 91,121.09/x
  3. Step 3: Cross multiply
    167,596.85x = 231,288.20 × 91,121.09
  4. Step 4: Simplify right side
    167,596.85x = 21,075,231,959.50
  5. Step 5: Solve for x
    x = 21,075,231,959.50/167,596.85
  6. Step 6: Final answer
    x = 125,749.57

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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.