Home / 143,837.30-198,496.37-80,179.20

Finding the Fourth Proportional to 143,837.30, 198,496.37 and 80,179.20

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Solution

The fourth proportional to 143,837.30, 198,496.37 and 80,179.20 is: 110,647.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,837.30 : 198,496.37 = 80,179.20 : x
  2. Step 2: Convert to fraction form
    143,837.30/198,496.37 = 80,179.20/x
  3. Step 3: Cross multiply
    143,837.30x = 198,496.37 × 80,179.20
  4. Step 4: Simplify right side
    143,837.30x = 15,915,280,349.95
  5. Step 5: Solve for x
    x = 15,915,280,349.95/143,837.30
  6. Step 6: Final answer
    x = 110,647.79

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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.