Home / 159,414.45-219,989.27-87,801.13

Finding the Fourth Proportional to 159,414.45, 219,989.27 and 87,801.13

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Solution

The fourth proportional to 159,414.45, 219,989.27 and 87,801.13 is: 121,164.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,414.45 : 219,989.27 = 87,801.13 : x
  2. Step 2: Convert to fraction form
    159,414.45/219,989.27 = 87,801.13/x
  3. Step 3: Cross multiply
    159,414.45x = 219,989.27 × 87,801.13
  4. Step 4: Simplify right side
    159,414.45x = 19,315,306,493.88
  5. Step 5: Solve for x
    x = 19,315,306,493.88/159,414.45
  6. Step 6: Final answer
    x = 121,164.09

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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.