Home / 167,791.02-231,556.47-91,315.05

Finding the Fourth Proportional to 167,791.02, 231,556.47 and 91,315.05

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Solution

The fourth proportional to 167,791.02, 231,556.47 and 91,315.05 is: 126,017.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,791.02 : 231,556.47 = 91,315.05 : x
  2. Step 2: Convert to fraction form
    167,791.02/231,556.47 = 91,315.05/x
  3. Step 3: Cross multiply
    167,791.02x = 231,556.47 × 91,315.05
  4. Step 4: Simplify right side
    167,791.02x = 21,144,590,635.87
  5. Step 5: Solve for x
    x = 21,144,590,635.87/167,791.02
  6. Step 6: Final answer
    x = 126,017.42

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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.