Home / 120,738.20-166,617.47-67,021.83

Finding the Fourth Proportional to 120,738.20, 166,617.47 and 67,021.83

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Solution

The fourth proportional to 120,738.20, 166,617.47 and 67,021.83 is: 92,489.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,738.20 : 166,617.47 = 67,021.83 : x
  2. Step 2: Convert to fraction form
    120,738.20/166,617.47 = 67,021.83/x
  3. Step 3: Cross multiply
    120,738.20x = 166,617.47 × 67,021.83
  4. Step 4: Simplify right side
    120,738.20x = 11,167,007,916.92
  5. Step 5: Solve for x
    x = 11,167,007,916.92/120,738.20
  6. Step 6: Final answer
    x = 92,489.44

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1.5x scale

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.