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Finding the Fourth Proportional to 159,067.89, 219,515.01 and 87,446.34

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Solution

The fourth proportional to 159,067.89, 219,515.01 and 87,446.34 is: 120,676.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,067.89 : 219,515.01 = 87,446.34 : x
  2. Step 2: Convert to fraction form
    159,067.89/219,515.01 = 87,446.34/x
  3. Step 3: Cross multiply
    159,067.89x = 219,515.01 × 87,446.34
  4. Step 4: Simplify right side
    159,067.89x = 19,195,784,199.56
  5. Step 5: Solve for x
    x = 19,195,784,199.56/159,067.89
  6. Step 6: Final answer
    x = 120,676.68

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1.5x scale

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.