Home / 144,086.21-198,841.97-80,426.69

Finding the Fourth Proportional to 144,086.21, 198,841.97 and 80,426.69

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Solution

The fourth proportional to 144,086.21, 198,841.97 and 80,426.69 is: 110,990.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,086.21 : 198,841.97 = 80,426.69 : x
  2. Step 2: Convert to fraction form
    144,086.21/198,841.97 = 80,426.69/x
  3. Step 3: Cross multiply
    144,086.21x = 198,841.97 × 80,426.69
  4. Step 4: Simplify right side
    144,086.21x = 15,992,201,480.18
  5. Step 5: Solve for x
    x = 15,992,201,480.18/144,086.21
  6. Step 6: Final answer
    x = 110,990.51

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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.