Home / 120,820.62-166,727.85-67,109.09

Finding the Fourth Proportional to 120,820.62, 166,727.85 and 67,109.09

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Solution

The fourth proportional to 120,820.62, 166,727.85 and 67,109.09 is: 92,607.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,820.62 : 166,727.85 = 67,109.09 : x
  2. Step 2: Convert to fraction form
    120,820.62/166,727.85 = 67,109.09/x
  3. Step 3: Cross multiply
    120,820.62x = 166,727.85 × 67,109.09
  4. Step 4: Simplify right side
    120,820.62x = 11,188,954,291.16
  5. Step 5: Solve for x
    x = 11,188,954,291.16/120,820.62
  6. Step 6: Final answer
    x = 92,607.99

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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.