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Finding the Fourth Proportional to 100,707.37, 150,957.37 and 53,947.69

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Solution

The fourth proportional to 100,707.37, 150,957.37 and 53,947.69 is: 80,865.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,707.37 : 150,957.37 = 53,947.69 : x
  2. Step 2: Convert to fraction form
    100,707.37/150,957.37 = 53,947.69/x
  3. Step 3: Cross multiply
    100,707.37x = 150,957.37 × 53,947.69
  4. Step 4: Simplify right side
    100,707.37x = 8,143,800,375.45
  5. Step 5: Solve for x
    x = 8,143,800,375.45/100,707.37
  6. Step 6: Final answer
    x = 80,865.99

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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.