Home / 107,789.07-161,583.84-55,082.37

Finding the Fourth Proportional to 107,789.07, 161,583.84 and 55,082.37

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Solution

The fourth proportional to 107,789.07, 161,583.84 and 55,082.37 is: 82,572.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,789.07 : 161,583.84 = 55,082.37 : x
  2. Step 2: Convert to fraction form
    107,789.07/161,583.84 = 55,082.37/x
  3. Step 3: Cross multiply
    107,789.07x = 161,583.84 × 55,082.37
  4. Step 4: Simplify right side
    107,789.07x = 8,900,420,860.90
  5. Step 5: Solve for x
    x = 8,900,420,860.90/107,789.07
  6. Step 6: Final answer
    x = 82,572.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.