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Finding the Fourth Proportional to 149,759, 206,498.94 and 122,449.88

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Solution

The fourth proportional to 149,759, 206,498.94 and 122,449.88 is: 168,843.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,759 : 206,498.94 = 122,449.88 : x
  2. Step 2: Convert to fraction form
    149,759/206,498.94 = 122,449.88/x
  3. Step 3: Cross multiply
    149,759x = 206,498.94 × 122,449.88
  4. Step 4: Simplify right side
    149,759x = 25,285,770,423.13
  5. Step 5: Solve for x
    x = 25,285,770,423.13/149,759
  6. Step 6: Final answer
    x = 168,843.08

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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.