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Finding the Fourth Proportional to 100,399.33, 150,393.97 and 56,049.71

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Solution

The fourth proportional to 100,399.33, 150,393.97 and 56,049.71 is: 83,960.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,399.33 : 150,393.97 = 56,049.71 : x
  2. Step 2: Convert to fraction form
    100,399.33/150,393.97 = 56,049.71/x
  3. Step 3: Cross multiply
    100,399.33x = 150,393.97 × 56,049.71
  4. Step 4: Simplify right side
    100,399.33x = 8,429,538,404.25
  5. Step 5: Solve for x
    x = 8,429,538,404.25/100,399.33
  6. Step 6: Final answer
    x = 83,960.11

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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.