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Finding the Fourth Proportional to 128,550.84, 192,778.32 and 44,287.44

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Solution

The fourth proportional to 128,550.84, 192,778.32 and 44,287.44 is: 66,414.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,550.84 : 192,778.32 = 44,287.44 : x
  2. Step 2: Convert to fraction form
    128,550.84/192,778.32 = 44,287.44/x
  3. Step 3: Cross multiply
    128,550.84x = 192,778.32 × 44,287.44
  4. Step 4: Simplify right side
    128,550.84x = 8,537,658,280.30
  5. Step 5: Solve for x
    x = 8,537,658,280.30/128,550.84
  6. Step 6: Final answer
    x = 66,414.64

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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.