Home / 117,086.70-161,576.07-66,101.34

Finding the Fourth Proportional to 117,086.70, 161,576.07 and 66,101.34

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Solution

The fourth proportional to 117,086.70, 161,576.07 and 66,101.34 is: 91,217.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,086.70 : 161,576.07 = 66,101.34 : x
  2. Step 2: Convert to fraction form
    117,086.70/161,576.07 = 66,101.34/x
  3. Step 3: Cross multiply
    117,086.70x = 161,576.07 × 66,101.34
  4. Step 4: Simplify right side
    117,086.70x = 10,680,394,738.93
  5. Step 5: Solve for x
    x = 10,680,394,738.93/117,086.70
  6. Step 6: Final answer
    x = 91,217.83

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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.