Home / 120,721.72-166,593.60-67,007.38

Finding the Fourth Proportional to 120,721.72, 166,593.60 and 67,007.38

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Solution

The fourth proportional to 120,721.72, 166,593.60 and 67,007.38 is: 92,468.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,721.72 : 166,593.60 = 67,007.38 : x
  2. Step 2: Convert to fraction form
    120,721.72/166,593.60 = 67,007.38/x
  3. Step 3: Cross multiply
    120,721.72x = 166,593.60 × 67,007.38
  4. Step 4: Simplify right side
    120,721.72x = 11,163,000,660.77
  5. Step 5: Solve for x
    x = 11,163,000,660.77/120,721.72
  6. Step 6: Final answer
    x = 92,468.87

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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.