Home / 135,909.72-187,525.14-82,193.54

Finding the Fourth Proportional to 135,909.72, 187,525.14 and 82,193.54

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Solution

The fourth proportional to 135,909.72, 187,525.14 and 82,193.54 is: 113,408.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,909.72 : 187,525.14 = 82,193.54 : x
  2. Step 2: Convert to fraction form
    135,909.72/187,525.14 = 82,193.54/x
  3. Step 3: Cross multiply
    135,909.72x = 187,525.14 × 82,193.54
  4. Step 4: Simplify right side
    135,909.72x = 15,413,355,095.60
  5. Step 5: Solve for x
    x = 15,413,355,095.60/135,909.72
  6. Step 6: Final answer
    x = 113,408.78

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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.