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Finding the Fourth Proportional to 144,326.88, 199,175.22 and 80,664.80

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Solution

The fourth proportional to 144,326.88, 199,175.22 and 80,664.80 is: 111,319.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,326.88 : 199,175.22 = 80,664.80 : x
  2. Step 2: Convert to fraction form
    144,326.88/199,175.22 = 80,664.80/x
  3. Step 3: Cross multiply
    144,326.88x = 199,175.22 × 80,664.80
  4. Step 4: Simplify right side
    144,326.88x = 16,066,428,290.38
  5. Step 5: Solve for x
    x = 16,066,428,290.38/144,326.88
  6. Step 6: Final answer
    x = 111,319.72

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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.