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Finding the Fourth Proportional to 144,286.88, 199,116.88 and 80,627.36

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Solution

The fourth proportional to 144,286.88, 199,116.88 and 80,627.36 is: 111,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,286.88 : 199,116.88 = 80,627.36 : x
  2. Step 2: Convert to fraction form
    144,286.88/199,116.88 = 80,627.36/x
  3. Step 3: Cross multiply
    144,286.88x = 199,116.88 × 80,627.36
  4. Step 4: Simplify right side
    144,286.88x = 16,054,268,365.84
  5. Step 5: Solve for x
    x = 16,054,268,365.84/144,286.88
  6. Step 6: Final answer
    x = 111,266.31

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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.