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Finding the Fourth Proportional to 100,808, 151,168.32 and 30,671.04

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Solution

The fourth proportional to 100,808, 151,168.32 and 30,671.04 is: 45,993.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,808 : 151,168.32 = 30,671.04 : x
  2. Step 2: Convert to fraction form
    100,808/151,168.32 = 30,671.04/x
  3. Step 3: Cross multiply
    100,808x = 151,168.32 × 30,671.04
  4. Step 4: Simplify right side
    100,808x = 4,636,489,589.45
  5. Step 5: Solve for x
    x = 4,636,489,589.45/100,808
  6. Step 6: Final answer
    x = 45,993.27

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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.