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Finding the Fourth Proportional to 128,352.80, 192,542.06 and 44,101.87

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Solution

The fourth proportional to 128,352.80, 192,542.06 and 44,101.87 is: 66,157.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,352.80 : 192,542.06 = 44,101.87 : x
  2. Step 2: Convert to fraction form
    128,352.80/192,542.06 = 44,101.87/x
  3. Step 3: Cross multiply
    128,352.80x = 192,542.06 × 44,101.87
  4. Step 4: Simplify right side
    128,352.80x = 8,491,464,528.55
  5. Step 5: Solve for x
    x = 8,491,464,528.55/128,352.80
  6. Step 6: Final answer
    x = 66,157.22

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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.