Home / 149,439.21-206,226.12-82,371.21

Finding the Fourth Proportional to 149,439.21, 206,226.12 and 82,371.21

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Solution

The fourth proportional to 149,439.21, 206,226.12 and 82,371.21 is: 113,672.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,439.21 : 206,226.12 = 82,371.21 : x
  2. Step 2: Convert to fraction form
    149,439.21/206,226.12 = 82,371.21/x
  3. Step 3: Cross multiply
    149,439.21x = 206,226.12 × 82,371.21
  4. Step 4: Simplify right side
    149,439.21x = 16,987,094,626.15
  5. Step 5: Solve for x
    x = 16,987,094,626.15/149,439.21
  6. Step 6: Final answer
    x = 113,672.27

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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.