Home / 144,378.32-199,217.76-80,716.64

Finding the Fourth Proportional to 144,378.32, 199,217.76 and 80,716.64

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Solution

The fourth proportional to 144,378.32, 199,217.76 and 80,716.64 is: 111,375.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,378.32 : 199,217.76 = 80,716.64 : x
  2. Step 2: Convert to fraction form
    144,378.32/199,217.76 = 80,716.64/x
  3. Step 3: Cross multiply
    144,378.32x = 199,217.76 × 80,716.64
  4. Step 4: Simplify right side
    144,378.32x = 16,080,188,215.53
  5. Step 5: Solve for x
    x = 16,080,188,215.53/144,378.32
  6. Step 6: Final answer
    x = 111,375.37

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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.