Home / 149,406.56-206,181.05-82,338.56

Finding the Fourth Proportional to 149,406.56, 206,181.05 and 82,338.56

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Solution

The fourth proportional to 149,406.56, 206,181.05 and 82,338.56 is: 113,627.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,406.56 : 206,181.05 = 82,338.56 : x
  2. Step 2: Convert to fraction form
    149,406.56/206,181.05 = 82,338.56/x
  3. Step 3: Cross multiply
    149,406.56x = 206,181.05 × 82,338.56
  4. Step 4: Simplify right side
    149,406.56x = 16,976,650,756.29
  5. Step 5: Solve for x
    x = 16,976,650,756.29/149,406.56
  6. Step 6: Final answer
    x = 113,627.21

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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.