Home / 159,380.13-219,944.58-87,759.97

Finding the Fourth Proportional to 159,380.13, 219,944.58 and 87,759.97

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Solution

The fourth proportional to 159,380.13, 219,944.58 and 87,759.97 is: 121,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,380.13 : 219,944.58 = 87,759.97 : x
  2. Step 2: Convert to fraction form
    159,380.13/219,944.58 = 87,759.97/x
  3. Step 3: Cross multiply
    159,380.13x = 219,944.58 × 87,759.97
  4. Step 4: Simplify right side
    159,380.13x = 19,302,329,742.46
  5. Step 5: Solve for x
    x = 19,302,329,742.46/159,380.13
  6. Step 6: Final answer
    x = 121,108.76

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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.