Home / 120,830.27-166,745.97-67,113.90

Finding the Fourth Proportional to 120,830.27, 166,745.97 and 67,113.90

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Solution

The fourth proportional to 120,830.27, 166,745.97 and 67,113.90 is: 92,617.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,830.27 : 166,745.97 = 67,113.90 : x
  2. Step 2: Convert to fraction form
    120,830.27/166,745.97 = 67,113.90/x
  3. Step 3: Cross multiply
    120,830.27x = 166,745.97 × 67,113.90
  4. Step 4: Simplify right side
    120,830.27x = 11,190,972,355.98
  5. Step 5: Solve for x
    x = 11,190,972,355.98/120,830.27
  6. Step 6: Final answer
    x = 92,617.30

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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.