Home / 149,872.75-206,818.23-81,892.06

Finding the Fourth Proportional to 149,872.75, 206,818.23 and 81,892.06

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Solution

The fourth proportional to 149,872.75, 206,818.23 and 81,892.06 is: 113,007.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,872.75 : 206,818.23 = 81,892.06 : x
  2. Step 2: Convert to fraction form
    149,872.75/206,818.23 = 81,892.06/x
  3. Step 3: Cross multiply
    149,872.75x = 206,818.23 × 81,892.06
  4. Step 4: Simplify right side
    149,872.75x = 16,936,769,866.16
  5. Step 5: Solve for x
    x = 16,936,769,866.16/149,872.75
  6. Step 6: Final answer
    x = 113,007.67

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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.