Home / 159,286.23-219,814.16-87,664.41

Finding the Fourth Proportional to 159,286.23, 219,814.16 and 87,664.41

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Solution

The fourth proportional to 159,286.23, 219,814.16 and 87,664.41 is: 120,976.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,286.23 : 219,814.16 = 87,664.41 : x
  2. Step 2: Convert to fraction form
    159,286.23/219,814.16 = 87,664.41/x
  3. Step 3: Cross multiply
    159,286.23x = 219,814.16 × 87,664.41
  4. Step 4: Simplify right side
    159,286.23x = 19,269,878,207.72
  5. Step 5: Solve for x
    x = 19,269,878,207.72/159,286.23
  6. Step 6: Final answer
    x = 120,976.42

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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.