Home / 144,583.12-199,479.24-80,910.80

Finding the Fourth Proportional to 144,583.12, 199,479.24 and 80,910.80

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Solution

The fourth proportional to 144,583.12, 199,479.24 and 80,910.80 is: 111,631.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,583.12 : 199,479.24 = 80,910.80 : x
  2. Step 2: Convert to fraction form
    144,583.12/199,479.24 = 80,910.80/x
  3. Step 3: Cross multiply
    144,583.12x = 199,479.24 × 80,910.80
  4. Step 4: Simplify right side
    144,583.12x = 16,140,024,891.79
  5. Step 5: Solve for x
    x = 16,140,024,891.79/144,583.12
  6. Step 6: Final answer
    x = 111,631.46

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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.