Home / 168,082.70-231,954.15-91,601.81

Finding the Fourth Proportional to 168,082.70, 231,954.15 and 91,601.81

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Solution

The fourth proportional to 168,082.70, 231,954.15 and 91,601.81 is: 126,410.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,082.70 : 231,954.15 = 91,601.81 : x
  2. Step 2: Convert to fraction form
    168,082.70/231,954.15 = 91,601.81/x
  3. Step 3: Cross multiply
    168,082.70x = 231,954.15 × 91,601.81
  4. Step 4: Simplify right side
    168,082.70x = 21,247,420,030.58
  5. Step 5: Solve for x
    x = 21,247,420,030.58/168,082.70
  6. Step 6: Final answer
    x = 126,410.51

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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.