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Finding the Fourth Proportional to 150,791.75, 208,103.24 and 99,715.71

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Solution

The fourth proportional to 150,791.75, 208,103.24 and 99,715.71 is: 137,614.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,791.75 : 208,103.24 = 99,715.71 : x
  2. Step 2: Convert to fraction form
    150,791.75/208,103.24 = 99,715.71/x
  3. Step 3: Cross multiply
    150,791.75x = 208,103.24 × 99,715.71
  4. Step 4: Simplify right side
    150,791.75x = 20,751,162,329.90
  5. Step 5: Solve for x
    x = 20,751,162,329.90/150,791.75
  6. Step 6: Final answer
    x = 137,614.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.