Home / 143,738.06-198,358.83-80,078.13

Finding the Fourth Proportional to 143,738.06, 198,358.83 and 80,078.13

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Solution

The fourth proportional to 143,738.06, 198,358.83 and 80,078.13 is: 110,507.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,738.06 : 198,358.83 = 80,078.13 : x
  2. Step 2: Convert to fraction form
    143,738.06/198,358.83 = 80,078.13/x
  3. Step 3: Cross multiply
    143,738.06x = 198,358.83 × 80,078.13
  4. Step 4: Simplify right side
    143,738.06x = 15,884,204,175.39
  5. Step 5: Solve for x
    x = 15,884,204,175.39/143,738.06
  6. Step 6: Final answer
    x = 110,507.99

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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.