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Finding the Fourth Proportional to 100,418.70, 150,628.32 and 41,212.83

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Solution

The fourth proportional to 100,418.70, 150,628.32 and 41,212.83 is: 61,819.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,418.70 : 150,628.32 = 41,212.83 : x
  2. Step 2: Convert to fraction form
    100,418.70/150,628.32 = 41,212.83/x
  3. Step 3: Cross multiply
    100,418.70x = 150,628.32 × 41,212.83
  4. Step 4: Simplify right side
    100,418.70x = 6,207,819,345.35
  5. Step 5: Solve for x
    x = 6,207,819,345.35/100,418.70
  6. Step 6: Final answer
    x = 61,819.36

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1.5x scale

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.