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Finding the Fourth Proportional to 103,736.25, 155,604.51 and 28,856.43

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Solution

The fourth proportional to 103,736.25, 155,604.51 and 28,856.43 is: 43,284.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,736.25 : 155,604.51 = 28,856.43 : x
  2. Step 2: Convert to fraction form
    103,736.25/155,604.51 = 28,856.43/x
  3. Step 3: Cross multiply
    103,736.25x = 155,604.51 × 28,856.43
  4. Step 4: Simplify right side
    103,736.25x = 4,490,190,650.50
  5. Step 5: Solve for x
    x = 4,490,190,650.50/103,736.25
  6. Step 6: Final answer
    x = 43,284.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.