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Finding the Fourth Proportional to 128,626.16, 192,960.93 and 44,363.78

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Solution

The fourth proportional to 128,626.16, 192,960.93 and 44,363.78 is: 66,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,626.16 : 192,960.93 = 44,363.78 : x
  2. Step 2: Convert to fraction form
    128,626.16/192,960.93 = 44,363.78/x
  3. Step 3: Cross multiply
    128,626.16x = 192,960.93 × 44,363.78
  4. Step 4: Simplify right side
    128,626.16x = 8,560,476,247.12
  5. Step 5: Solve for x
    x = 8,560,476,247.12/128,626.16
  6. Step 6: Final answer
    x = 66,553.15

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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.