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Finding the Fourth Proportional to 109,933.60, 164,778.90 and 43,351.60

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Solution

The fourth proportional to 109,933.60, 164,778.90 and 43,351.60 is: 64,979.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,933.60 : 164,778.90 = 43,351.60 : x
  2. Step 2: Convert to fraction form
    109,933.60/164,778.90 = 43,351.60/x
  3. Step 3: Cross multiply
    109,933.60x = 164,778.90 × 43,351.60
  4. Step 4: Simplify right side
    109,933.60x = 7,143,428,961.24
  5. Step 5: Solve for x
    x = 7,143,428,961.24/109,933.60
  6. Step 6: Final answer
    x = 64,979.49

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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.