Home / 120,822.62-166,740.78-67,107.86

Finding the Fourth Proportional to 120,822.62, 166,740.78 and 67,107.86

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Solution

The fourth proportional to 120,822.62, 166,740.78 and 67,107.86 is: 92,611.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,822.62 : 166,740.78 = 67,107.86 : x
  2. Step 2: Convert to fraction form
    120,822.62/166,740.78 = 67,107.86/x
  3. Step 3: Cross multiply
    120,822.62x = 166,740.78 × 67,107.86
  4. Step 4: Simplify right side
    120,822.62x = 11,189,616,920.53
  5. Step 5: Solve for x
    x = 11,189,616,920.53/120,822.62
  6. Step 6: Final answer
    x = 92,611.94

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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.