Home / 144,431.46-199,333.98-80,772.75

Finding the Fourth Proportional to 144,431.46, 199,333.98 and 80,772.75

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Solution

The fourth proportional to 144,431.46, 199,333.98 and 80,772.75 is: 111,476.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,431.46 : 199,333.98 = 80,772.75 : x
  2. Step 2: Convert to fraction form
    144,431.46/199,333.98 = 80,772.75/x
  3. Step 3: Cross multiply
    144,431.46x = 199,333.98 × 80,772.75
  4. Step 4: Simplify right side
    144,431.46x = 16,100,753,733.05
  5. Step 5: Solve for x
    x = 16,100,753,733.05/144,431.46
  6. Step 6: Final answer
    x = 111,476.78

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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.