Home / 149,279.48-206,004.78-82,211

Finding the Fourth Proportional to 149,279.48, 206,004.78 and 82,211

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Solution

The fourth proportional to 149,279.48, 206,004.78 and 82,211 is: 113,450.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,279.48 : 206,004.78 = 82,211 : x
  2. Step 2: Convert to fraction form
    149,279.48/206,004.78 = 82,211/x
  3. Step 3: Cross multiply
    149,279.48x = 206,004.78 × 82,211
  4. Step 4: Simplify right side
    149,279.48x = 16,935,858,968.58
  5. Step 5: Solve for x
    x = 16,935,858,968.58/149,279.48
  6. Step 6: Final answer
    x = 113,450.68

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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.