Home / 143,837.54-198,498.41-80,168.49

Finding the Fourth Proportional to 143,837.54, 198,498.41 and 80,168.49

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Solution

The fourth proportional to 143,837.54, 198,498.41 and 80,168.49 is: 110,633.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,837.54 : 198,498.41 = 80,168.49 : x
  2. Step 2: Convert to fraction form
    143,837.54/198,498.41 = 80,168.49/x
  3. Step 3: Cross multiply
    143,837.54x = 198,498.41 × 80,168.49
  4. Step 4: Simplify right side
    143,837.54x = 15,913,317,396.26
  5. Step 5: Solve for x
    x = 15,913,317,396.26/143,837.54
  6. Step 6: Final answer
    x = 110,633.97

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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.