Home / 149,998.32-206,997.80-82,014.21

Finding the Fourth Proportional to 149,998.32, 206,997.80 and 82,014.21

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Solution

The fourth proportional to 149,998.32, 206,997.80 and 82,014.21 is: 113,179.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,998.32 : 206,997.80 = 82,014.21 : x
  2. Step 2: Convert to fraction form
    149,998.32/206,997.80 = 82,014.21/x
  3. Step 3: Cross multiply
    149,998.32x = 206,997.80 × 82,014.21
  4. Step 4: Simplify right side
    149,998.32x = 16,976,760,628.67
  5. Step 5: Solve for x
    x = 16,976,760,628.67/149,998.32
  6. Step 6: Final answer
    x = 113,179.67

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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.