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Finding the Fourth Proportional to 144,668.66, 199,659.80 and 80,994.15

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Solution

The fourth proportional to 144,668.66, 199,659.80 and 80,994.15 is: 111,781.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,668.66 : 199,659.80 = 80,994.15 : x
  2. Step 2: Convert to fraction form
    144,668.66/199,659.80 = 80,994.15/x
  3. Step 3: Cross multiply
    144,668.66x = 199,659.80 × 80,994.15
  4. Step 4: Simplify right side
    144,668.66x = 16,171,275,992.66
  5. Step 5: Solve for x
    x = 16,171,275,992.66/144,668.66
  6. Step 6: Final answer
    x = 111,781.48

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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.