Home / 149,372.40-206,067.24-100,958.88

Finding the Fourth Proportional to 149,372.40, 206,067.24 and 100,958.88

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Solution

The fourth proportional to 149,372.40, 206,067.24 and 100,958.88 is: 139,278.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,372.40 : 206,067.24 = 100,958.88 : x
  2. Step 2: Convert to fraction form
    149,372.40/206,067.24 = 100,958.88/x
  3. Step 3: Cross multiply
    149,372.40x = 206,067.24 × 100,958.88
  4. Step 4: Simplify right side
    149,372.40x = 20,804,317,755.09
  5. Step 5: Solve for x
    x = 20,804,317,755.09/149,372.40
  6. Step 6: Final answer
    x = 139,278.19

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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.