Home / 120,857.05-166,785.65-67,144.33

Finding the Fourth Proportional to 120,857.05, 166,785.65 and 67,144.33

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Solution

The fourth proportional to 120,857.05, 166,785.65 and 67,144.33 is: 92,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,857.05 : 166,785.65 = 67,144.33 : x
  2. Step 2: Convert to fraction form
    120,857.05/166,785.65 = 67,144.33/x
  3. Step 3: Cross multiply
    120,857.05x = 166,785.65 × 67,144.33
  4. Step 4: Simplify right side
    120,857.05x = 11,198,710,722.86
  5. Step 5: Solve for x
    x = 11,198,710,722.86/120,857.05
  6. Step 6: Final answer
    x = 92,660.80

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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.