Home / 120,407.03-166,164.39-68,723.09

Finding the Fourth Proportional to 120,407.03, 166,164.39 and 68,723.09

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Solution

The fourth proportional to 120,407.03, 166,164.39 and 68,723.09 is: 94,839.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,407.03 : 166,164.39 = 68,723.09 : x
  2. Step 2: Convert to fraction form
    120,407.03/166,164.39 = 68,723.09/x
  3. Step 3: Cross multiply
    120,407.03x = 166,164.39 × 68,723.09
  4. Step 4: Simplify right side
    120,407.03x = 11,419,330,744.18
  5. Step 5: Solve for x
    x = 11,419,330,744.18/120,407.03
  6. Step 6: Final answer
    x = 94,839.41

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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.