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Finding the Fourth Proportional to 128,000.22, 192,000.33 and 34,505.97

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Solution

The fourth proportional to 128,000.22, 192,000.33 and 34,505.97 is: 51,758.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,000.22 : 192,000.33 = 34,505.97 : x
  2. Step 2: Convert to fraction form
    128,000.22/192,000.33 = 34,505.97/x
  3. Step 3: Cross multiply
    128,000.22x = 192,000.33 × 34,505.97
  4. Step 4: Simplify right side
    128,000.22x = 6,625,157,626.97
  5. Step 5: Solve for x
    x = 6,625,157,626.97/128,000.22
  6. Step 6: Final answer
    x = 51,758.96

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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.