Home / 144,286.68-199,115.21-80,624.54

Finding the Fourth Proportional to 144,286.68, 199,115.21 and 80,624.54

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Solution

The fourth proportional to 144,286.68, 199,115.21 and 80,624.54 is: 111,261.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,286.68 : 199,115.21 = 80,624.54 : x
  2. Step 2: Convert to fraction form
    144,286.68/199,115.21 = 80,624.54/x
  3. Step 3: Cross multiply
    144,286.68x = 199,115.21 × 80,624.54
  4. Step 4: Simplify right side
    144,286.68x = 16,053,570,814.55
  5. Step 5: Solve for x
    x = 16,053,570,814.55/144,286.68
  6. Step 6: Final answer
    x = 111,261.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.