Home / 159,122.82-219,591.10-87,503.37

Finding the Fourth Proportional to 159,122.82, 219,591.10 and 87,503.37

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Solution

The fourth proportional to 159,122.82, 219,591.10 and 87,503.37 is: 120,755.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,122.82 : 219,591.10 = 87,503.37 : x
  2. Step 2: Convert to fraction form
    159,122.82/219,591.10 = 87,503.37/x
  3. Step 3: Cross multiply
    159,122.82x = 219,591.10 × 87,503.37
  4. Step 4: Simplify right side
    159,122.82x = 19,214,960,174.05
  5. Step 5: Solve for x
    x = 19,214,960,174.05/159,122.82
  6. Step 6: Final answer
    x = 120,755.53

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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.