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Finding the Fourth Proportional to 144,359.44, 199,215.36 and 80,696.80

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Solution

The fourth proportional to 144,359.44, 199,215.36 and 80,696.80 is: 111,361.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,359.44 : 199,215.36 = 80,696.80 : x
  2. Step 2: Convert to fraction form
    144,359.44/199,215.36 = 80,696.80/x
  3. Step 3: Cross multiply
    144,359.44x = 199,215.36 × 80,696.80
  4. Step 4: Simplify right side
    144,359.44x = 16,076,042,062.85
  5. Step 5: Solve for x
    x = 16,076,042,062.85/144,359.44
  6. Step 6: Final answer
    x = 111,361.21

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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.