Home / 149,910.40-206,876.22-82,842.40

Finding the Fourth Proportional to 149,910.40, 206,876.22 and 82,842.40

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Solution

The fourth proportional to 149,910.40, 206,876.22 and 82,842.40 is: 114,322.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,910.40 : 206,876.22 = 82,842.40 : x
  2. Step 2: Convert to fraction form
    149,910.40/206,876.22 = 82,842.40/x
  3. Step 3: Cross multiply
    149,910.40x = 206,876.22 × 82,842.40
  4. Step 4: Simplify right side
    149,910.40x = 17,138,122,567.73
  5. Step 5: Solve for x
    x = 17,138,122,567.73/149,910.40
  6. Step 6: Final answer
    x = 114,322.44

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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.