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Finding the Fourth Proportional to 71,163.48, 106,745.08 and 66,833.22

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Solution

The fourth proportional to 71,163.48, 106,745.08 and 66,833.22 is: 100,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,163.48 : 106,745.08 = 66,833.22 : x
  2. Step 2: Convert to fraction form
    71,163.48/106,745.08 = 66,833.22/x
  3. Step 3: Cross multiply
    71,163.48x = 106,745.08 × 66,833.22
  4. Step 4: Simplify right side
    71,163.48x = 7,134,117,415.56
  5. Step 5: Solve for x
    x = 7,134,117,415.56/71,163.48
  6. Step 6: Final answer
    x = 100,249.70

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