Home / 149,716.26-206,605.35-81,734.58

Finding the Fourth Proportional to 149,716.26, 206,605.35 and 81,734.58

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Solution

The fourth proportional to 149,716.26, 206,605.35 and 81,734.58 is: 112,792.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,716.26 : 206,605.35 = 81,734.58 : x
  2. Step 2: Convert to fraction form
    149,716.26/206,605.35 = 81,734.58/x
  3. Step 3: Cross multiply
    149,716.26x = 206,605.35 × 81,734.58
  4. Step 4: Simplify right side
    149,716.26x = 16,886,801,508.00
  5. Step 5: Solve for x
    x = 16,886,801,508.00/149,716.26
  6. Step 6: Final answer
    x = 112,792.03

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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.