Home / 143,837.91-198,498.92-80,168.87

Finding the Fourth Proportional to 143,837.91, 198,498.92 and 80,168.87

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Solution

The fourth proportional to 143,837.91, 198,498.92 and 80,168.87 is: 110,634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,837.91 : 198,498.92 = 80,168.87 : x
  2. Step 2: Convert to fraction form
    143,837.91/198,498.92 = 80,168.87/x
  3. Step 3: Cross multiply
    143,837.91x = 198,498.92 × 80,168.87
  4. Step 4: Simplify right side
    143,837.91x = 15,913,432,719.28
  5. Step 5: Solve for x
    x = 15,913,432,719.28/143,837.91
  6. Step 6: Final answer
    x = 110,634.48

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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.