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Finding the Fourth Proportional to 100,979.16, 151,486.67 and 33,515.24

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Solution

The fourth proportional to 100,979.16, 151,486.67 and 33,515.24 is: 50,278.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,979.16 : 151,486.67 = 33,515.24 : x
  2. Step 2: Convert to fraction form
    100,979.16/151,486.67 = 33,515.24/x
  3. Step 3: Cross multiply
    100,979.16x = 151,486.67 × 33,515.24
  4. Step 4: Simplify right side
    100,979.16x = 5,077,111,428.21
  5. Step 5: Solve for x
    x = 5,077,111,428.21/100,979.16
  6. Step 6: Final answer
    x = 50,278.81

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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.