Home / 143,728.44-198,351.38-80,066.28

Finding the Fourth Proportional to 143,728.44, 198,351.38 and 80,066.28

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Solution

The fourth proportional to 143,728.44, 198,351.38 and 80,066.28 is: 110,494.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,728.44 : 198,351.38 = 80,066.28 : x
  2. Step 2: Convert to fraction form
    143,728.44/198,351.38 = 80,066.28/x
  3. Step 3: Cross multiply
    143,728.44x = 198,351.38 × 80,066.28
  4. Step 4: Simplify right side
    143,728.44x = 15,881,257,129.47
  5. Step 5: Solve for x
    x = 15,881,257,129.47/143,728.44
  6. Step 6: Final answer
    x = 110,494.88

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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.