Home / 143,910.36-198,591.84-80,258.88

Finding the Fourth Proportional to 143,910.36, 198,591.84 and 80,258.88

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Solution

The fourth proportional to 143,910.36, 198,591.84 and 80,258.88 is: 110,754.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,910.36 : 198,591.84 = 80,258.88 : x
  2. Step 2: Convert to fraction form
    143,910.36/198,591.84 = 80,258.88/x
  3. Step 3: Cross multiply
    143,910.36x = 198,591.84 × 80,258.88
  4. Step 4: Simplify right side
    143,910.36x = 15,938,758,655.54
  5. Step 5: Solve for x
    x = 15,938,758,655.54/143,910.36
  6. Step 6: Final answer
    x = 110,754.77

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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.