Home / 159,040.32-219,481.26-87,426.96

Finding the Fourth Proportional to 159,040.32, 219,481.26 and 87,426.96

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Solution

The fourth proportional to 159,040.32, 219,481.26 and 87,426.96 is: 120,652.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,040.32 : 219,481.26 = 87,426.96 : x
  2. Step 2: Convert to fraction form
    159,040.32/219,481.26 = 87,426.96/x
  3. Step 3: Cross multiply
    159,040.32x = 219,481.26 × 87,426.96
  4. Step 4: Simplify right side
    159,040.32x = 19,188,579,338.77
  5. Step 5: Solve for x
    x = 19,188,579,338.77/159,040.32
  6. Step 6: Final answer
    x = 120,652.29

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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.