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Finding the Fourth Proportional to 103,690.06, 155,455.17 and 33,550.54

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Solution

The fourth proportional to 103,690.06, 155,455.17 and 33,550.54 is: 50,299.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,690.06 : 155,455.17 = 33,550.54 : x
  2. Step 2: Convert to fraction form
    103,690.06/155,455.17 = 33,550.54/x
  3. Step 3: Cross multiply
    103,690.06x = 155,455.17 × 33,550.54
  4. Step 4: Simplify right side
    103,690.06x = 5,215,604,899.29
  5. Step 5: Solve for x
    x = 5,215,604,899.29/103,690.06
  6. Step 6: Final answer
    x = 50,299.95

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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.