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Finding the Fourth Proportional to 100,921.68, 151,452.80 and 41,757.66

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Solution

The fourth proportional to 100,921.68, 151,452.80 and 41,757.66 is: 62,665.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,921.68 : 151,452.80 = 41,757.66 : x
  2. Step 2: Convert to fraction form
    100,921.68/151,452.80 = 41,757.66/x
  3. Step 3: Cross multiply
    100,921.68x = 151,452.80 × 41,757.66
  4. Step 4: Simplify right side
    100,921.68x = 6,324,314,528.45
  5. Step 5: Solve for x
    x = 6,324,314,528.45/100,921.68
  6. Step 6: Final answer
    x = 62,665.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.