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Finding the Fourth Proportional to 100,349.54, 150,505.12 and 50,415.80

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Solution

The fourth proportional to 100,349.54, 150,505.12 and 50,415.80 is: 75,614.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,349.54 : 150,505.12 = 50,415.80 : x
  2. Step 2: Convert to fraction form
    100,349.54/150,505.12 = 50,415.80/x
  3. Step 3: Cross multiply
    100,349.54x = 150,505.12 × 50,415.80
  4. Step 4: Simplify right side
    100,349.54x = 7,587,836,028.90
  5. Step 5: Solve for x
    x = 7,587,836,028.90/100,349.54
  6. Step 6: Final answer
    x = 75,614.06

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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.