Home / 143,679.44-198,258.12-80,004.56

Finding the Fourth Proportional to 143,679.44, 198,258.12 and 80,004.56

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Solution

The fourth proportional to 143,679.44, 198,258.12 and 80,004.56 is: 110,395.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,679.44 : 198,258.12 = 80,004.56 : x
  2. Step 2: Convert to fraction form
    143,679.44/198,258.12 = 80,004.56/x
  3. Step 3: Cross multiply
    143,679.44x = 198,258.12 × 80,004.56
  4. Step 4: Simplify right side
    143,679.44x = 15,861,553,657.03
  5. Step 5: Solve for x
    x = 15,861,553,657.03/143,679.44
  6. Step 6: Final answer
    x = 110,395.43

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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.