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Finding the Fourth Proportional to 179,960.20, 269,940.30 and 105,164.80

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Solution

The fourth proportional to 179,960.20, 269,940.30 and 105,164.80 is: 157,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,960.20 : 269,940.30 = 105,164.80 : x
  2. Step 2: Convert to fraction form
    179,960.20/269,940.30 = 105,164.80/x
  3. Step 3: Cross multiply
    179,960.20x = 269,940.30 × 105,164.80
  4. Step 4: Simplify right side
    179,960.20x = 28,388,217,661.44
  5. Step 5: Solve for x
    x = 28,388,217,661.44/179,960.20
  6. Step 6: Final answer
    x = 157,747.20

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1.5x scale

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.