Home / 120,650.82-180,971.66-36,408.75

Finding the Fourth Proportional to 120,650.82, 180,971.66 and 36,408.75

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Solution

The fourth proportional to 120,650.82, 180,971.66 and 36,408.75 is: 54,611.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,650.82 : 180,971.66 = 36,408.75 : x
  2. Step 2: Convert to fraction form
    120,650.82/180,971.66 = 36,408.75/x
  3. Step 3: Cross multiply
    120,650.82x = 180,971.66 × 36,408.75
  4. Step 4: Simplify right side
    120,650.82x = 6,588,951,743.98
  5. Step 5: Solve for x
    x = 6,588,951,743.98/120,650.82
  6. Step 6: Final answer
    x = 54,611.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.