Home / 159,121.82-219,589.72-87,502.37

Finding the Fourth Proportional to 159,121.82, 219,589.72 and 87,502.37

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Solution

The fourth proportional to 159,121.82, 219,589.72 and 87,502.37 is: 120,754.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,121.82 : 219,589.72 = 87,502.37 : x
  2. Step 2: Convert to fraction form
    159,121.82/219,589.72 = 87,502.37/x
  3. Step 3: Cross multiply
    159,121.82x = 219,589.72 × 87,502.37
  4. Step 4: Simplify right side
    159,121.82x = 19,214,619,610.93
  5. Step 5: Solve for x
    x = 19,214,619,610.93/159,121.82
  6. Step 6: Final answer
    x = 120,754.15

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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.