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Finding the Fourth Proportional to 128,039.46, 192,035.97 and 34,523.34

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Solution

The fourth proportional to 128,039.46, 192,035.97 and 34,523.34 is: 51,778.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,039.46 : 192,035.97 = 34,523.34 : x
  2. Step 2: Convert to fraction form
    128,039.46/192,035.97 = 34,523.34/x
  3. Step 3: Cross multiply
    128,039.46x = 192,035.97 × 34,523.34
  4. Step 4: Simplify right side
    128,039.46x = 6,629,723,084.54
  5. Step 5: Solve for x
    x = 6,629,723,084.54/128,039.46
  6. Step 6: Final answer
    x = 51,778.75

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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.