Home / 120,600.69-166,439.16-66,903

Finding the Fourth Proportional to 120,600.69, 166,439.16 and 66,903

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Solution

The fourth proportional to 120,600.69, 166,439.16 and 66,903 is: 92,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,600.69 : 166,439.16 = 66,903 : x
  2. Step 2: Convert to fraction form
    120,600.69/166,439.16 = 66,903/x
  3. Step 3: Cross multiply
    120,600.69x = 166,439.16 × 66,903
  4. Step 4: Simplify right side
    120,600.69x = 11,135,279,121.48
  5. Step 5: Solve for x
    x = 11,135,279,121.48/120,600.69
  6. Step 6: Final answer
    x = 92,331.80

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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.