Home / 143,669.68-198,251.46-83,221

Finding the Fourth Proportional to 143,669.68, 198,251.46 and 83,221

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Solution

The fourth proportional to 143,669.68, 198,251.46 and 83,221 is: 114,837.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,669.68 : 198,251.46 = 83,221 : x
  2. Step 2: Convert to fraction form
    143,669.68/198,251.46 = 83,221/x
  3. Step 3: Cross multiply
    143,669.68x = 198,251.46 × 83,221
  4. Step 4: Simplify right side
    143,669.68x = 16,498,684,752.66
  5. Step 5: Solve for x
    x = 16,498,684,752.66/143,669.68
  6. Step 6: Final answer
    x = 114,837.62

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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.