Home / 159,056.22-219,500.31-87,439.26

Finding the Fourth Proportional to 159,056.22, 219,500.31 and 87,439.26

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Solution

The fourth proportional to 159,056.22, 219,500.31 and 87,439.26 is: 120,667.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,056.22 : 219,500.31 = 87,439.26 : x
  2. Step 2: Convert to fraction form
    159,056.22/219,500.31 = 87,439.26/x
  3. Step 3: Cross multiply
    159,056.22x = 219,500.31 × 87,439.26
  4. Step 4: Simplify right side
    159,056.22x = 19,192,944,676.17
  5. Step 5: Solve for x
    x = 19,192,944,676.17/159,056.22
  6. Step 6: Final answer
    x = 120,667.68

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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.