Home / 149,944.10-206,928.40-81,965.60

Finding the Fourth Proportional to 149,944.10, 206,928.40 and 81,965.60

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Solution

The fourth proportional to 149,944.10, 206,928.40 and 81,965.60 is: 113,115.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,944.10 : 206,928.40 = 81,965.60 : x
  2. Step 2: Convert to fraction form
    149,944.10/206,928.40 = 81,965.60/x
  3. Step 3: Cross multiply
    149,944.10x = 206,928.40 × 81,965.60
  4. Step 4: Simplify right side
    149,944.10x = 16,961,010,463.04
  5. Step 5: Solve for x
    x = 16,961,010,463.04/149,944.10
  6. Step 6: Final answer
    x = 113,115.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.