Home / 120,301.38-165,992.85-66,583.86

Finding the Fourth Proportional to 120,301.38, 165,992.85 and 66,583.86

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Solution

The fourth proportional to 120,301.38, 165,992.85 and 66,583.86 is: 91,872.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,301.38 : 165,992.85 = 66,583.86 : x
  2. Step 2: Convert to fraction form
    120,301.38/165,992.85 = 66,583.86/x
  3. Step 3: Cross multiply
    120,301.38x = 165,992.85 × 66,583.86
  4. Step 4: Simplify right side
    120,301.38x = 11,052,444,685.40
  5. Step 5: Solve for x
    x = 11,052,444,685.40/120,301.38
  6. Step 6: Final answer
    x = 91,872.97

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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.