Home / 143,731.44-198,355.52-80,069.28

Finding the Fourth Proportional to 143,731.44, 198,355.52 and 80,069.28

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Solution

The fourth proportional to 143,731.44, 198,355.52 and 80,069.28 is: 110,499.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,731.44 : 198,355.52 = 80,069.28 : x
  2. Step 2: Convert to fraction form
    143,731.44/198,355.52 = 80,069.28/x
  3. Step 3: Cross multiply
    143,731.44x = 198,355.52 × 80,069.28
  4. Step 4: Simplify right side
    143,731.44x = 15,882,183,670.43
  5. Step 5: Solve for x
    x = 15,882,183,670.43/143,731.44
  6. Step 6: Final answer
    x = 110,499.02

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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.