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Finding the Fourth Proportional to 103,194.26, 154,781 and 28,321.93

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Solution

The fourth proportional to 103,194.26, 154,781 and 28,321.93 is: 42,480.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,194.26 : 154,781 = 28,321.93 : x
  2. Step 2: Convert to fraction form
    103,194.26/154,781 = 28,321.93/x
  3. Step 3: Cross multiply
    103,194.26x = 154,781 × 28,321.93
  4. Step 4: Simplify right side
    103,194.26x = 4,383,696,647.33
  5. Step 5: Solve for x
    x = 4,383,696,647.33/103,194.26
  6. Step 6: Final answer
    x = 42,480.04

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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.