Home / 149,716.50-206,609.43-81,735.06

Finding the Fourth Proportional to 149,716.50, 206,609.43 and 81,735.06

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Solution

The fourth proportional to 149,716.50, 206,609.43 and 81,735.06 is: 112,794.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,716.50 : 206,609.43 = 81,735.06 : x
  2. Step 2: Convert to fraction form
    149,716.50/206,609.43 = 81,735.06/x
  3. Step 3: Cross multiply
    149,716.50x = 206,609.43 × 81,735.06
  4. Step 4: Simplify right side
    149,716.50x = 16,887,234,157.62
  5. Step 5: Solve for x
    x = 16,887,234,157.62/149,716.50
  6. Step 6: Final answer
    x = 112,794.74

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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.