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Finding the Fourth Proportional to 100,109.15, 150,119.45 and 29,975.39

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Solution

The fourth proportional to 100,109.15, 150,119.45 and 29,975.39 is: 44,949.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,109.15 : 150,119.45 = 29,975.39 : x
  2. Step 2: Convert to fraction form
    100,109.15/150,119.45 = 29,975.39/x
  3. Step 3: Cross multiply
    100,109.15x = 150,119.45 × 29,975.39
  4. Step 4: Simplify right side
    100,109.15x = 4,499,888,910.46
  5. Step 5: Solve for x
    x = 4,499,888,910.46/100,109.15
  6. Step 6: Final answer
    x = 44,949.83

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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.