Home / 143,008.74-197,380.78-82,589.22

Finding the Fourth Proportional to 143,008.74, 197,380.78 and 82,589.22

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Solution

The fourth proportional to 143,008.74, 197,380.78 and 82,589.22 is: 113,989.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,008.74 : 197,380.78 = 82,589.22 : x
  2. Step 2: Convert to fraction form
    143,008.74/197,380.78 = 82,589.22/x
  3. Step 3: Cross multiply
    143,008.74x = 197,380.78 × 82,589.22
  4. Step 4: Simplify right side
    143,008.74x = 16,301,524,663.19
  5. Step 5: Solve for x
    x = 16,301,524,663.19/143,008.74
  6. Step 6: Final answer
    x = 113,989.71

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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.