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Finding the Fourth Proportional to 100,085.43, 150,149.55 and 36,905.73

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Solution

The fourth proportional to 100,085.43, 150,149.55 and 36,905.73 is: 55,366.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,085.43 : 150,149.55 = 36,905.73 : x
  2. Step 2: Convert to fraction form
    100,085.43/150,149.55 = 36,905.73/x
  3. Step 3: Cross multiply
    100,085.43x = 150,149.55 × 36,905.73
  4. Step 4: Simplify right side
    100,085.43x = 5,541,378,751.92
  5. Step 5: Solve for x
    x = 5,541,378,751.92/100,085.43
  6. Step 6: Final answer
    x = 55,366.49

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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.