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Finding the Fourth Proportional to 80,163.57, 120,166.08 and 37,969.51

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Solution

The fourth proportional to 80,163.57, 120,166.08 and 37,969.51 is: 56,916.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,163.57 : 120,166.08 = 37,969.51 : x
  2. Step 2: Convert to fraction form
    80,163.57/120,166.08 = 37,969.51/x
  3. Step 3: Cross multiply
    80,163.57x = 120,166.08 × 37,969.51
  4. Step 4: Simplify right side
    80,163.57x = 4,562,647,172.31
  5. Step 5: Solve for x
    x = 4,562,647,172.31/80,163.57
  6. Step 6: Final answer
    x = 56,916.71

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1.5x scale

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.