Home / 117,101.97-161,586.09-66,108.42

Finding the Fourth Proportional to 117,101.97, 161,586.09 and 66,108.42

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Solution

The fourth proportional to 117,101.97, 161,586.09 and 66,108.42 is: 91,221.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,101.97 : 161,586.09 = 66,108.42 : x
  2. Step 2: Convert to fraction form
    117,101.97/161,586.09 = 66,108.42/x
  3. Step 3: Cross multiply
    117,101.97x = 161,586.09 × 66,108.42
  4. Step 4: Simplify right side
    117,101.97x = 10,682,201,103.88
  5. Step 5: Solve for x
    x = 10,682,201,103.88/117,101.97
  6. Step 6: Final answer
    x = 91,221.36

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1.5x scale

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.