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Finding the Fourth Proportional to 179,519.92, 269,329.80 and 78,326.80

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Solution

The fourth proportional to 179,519.92, 269,329.80 and 78,326.80 is: 117,511.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,519.92 : 269,329.80 = 78,326.80 : x
  2. Step 2: Convert to fraction form
    179,519.92/269,329.80 = 78,326.80/x
  3. Step 3: Cross multiply
    179,519.92x = 269,329.80 × 78,326.80
  4. Step 4: Simplify right side
    179,519.92x = 21,095,741,378.64
  5. Step 5: Solve for x
    x = 21,095,741,378.64/179,519.92
  6. Step 6: Final answer
    x = 117,511.98

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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.