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Finding the Fourth Proportional to 103,634.45, 155,451.68 and 33,520.85

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Solution

The fourth proportional to 103,634.45, 155,451.68 and 33,520.85 is: 50,281.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,634.45 : 155,451.68 = 33,520.85 : x
  2. Step 2: Convert to fraction form
    103,634.45/155,451.68 = 33,520.85/x
  3. Step 3: Cross multiply
    103,634.45x = 155,451.68 × 33,520.85
  4. Step 4: Simplify right side
    103,634.45x = 5,210,872,447.53
  5. Step 5: Solve for x
    x = 5,210,872,447.53/103,634.45
  6. Step 6: Final answer
    x = 50,281.28

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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.