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Finding the Fourth Proportional to 128,503.67, 192,768.56 and 44,252.83

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Solution

The fourth proportional to 128,503.67, 192,768.56 and 44,252.83 is: 66,383.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,503.67 : 192,768.56 = 44,252.83 : x
  2. Step 2: Convert to fraction form
    128,503.67/192,768.56 = 44,252.83/x
  3. Step 3: Cross multiply
    128,503.67x = 192,768.56 × 44,252.83
  4. Step 4: Simplify right side
    128,503.67x = 8,530,554,500.67
  5. Step 5: Solve for x
    x = 8,530,554,500.67/128,503.67
  6. Step 6: Final answer
    x = 66,383.74

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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.