Home / 149,999.12-206,998.72-82,016.44

Finding the Fourth Proportional to 149,999.12, 206,998.72 and 82,016.44

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Solution

The fourth proportional to 149,999.12, 206,998.72 and 82,016.44 is: 113,182.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,999.12 : 206,998.72 = 82,016.44 : x
  2. Step 2: Convert to fraction form
    149,999.12/206,998.72 = 82,016.44/x
  3. Step 3: Cross multiply
    149,999.12x = 206,998.72 × 82,016.44
  4. Step 4: Simplify right side
    149,999.12x = 16,977,298,098.96
  5. Step 5: Solve for x
    x = 16,977,298,098.96/149,999.12
  6. Step 6: Final answer
    x = 113,182.65

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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.