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Finding the Fourth Proportional to 100,671.38, 151,007.99 and 30,550.70

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Solution

The fourth proportional to 100,671.38, 151,007.99 and 30,550.70 is: 45,826.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,671.38 : 151,007.99 = 30,550.70 : x
  2. Step 2: Convert to fraction form
    100,671.38/151,007.99 = 30,550.70/x
  3. Step 3: Cross multiply
    100,671.38x = 151,007.99 × 30,550.70
  4. Step 4: Simplify right side
    100,671.38x = 4,613,399,800.09
  5. Step 5: Solve for x
    x = 4,613,399,800.09/100,671.38
  6. Step 6: Final answer
    x = 45,826.33

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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.