Home / 149,736.20-206,656.74-86,072.64

Finding the Fourth Proportional to 149,736.20, 206,656.74 and 86,072.64

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Solution

The fourth proportional to 149,736.20, 206,656.74 and 86,072.64 is: 118,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,736.20 : 206,656.74 = 86,072.64 : x
  2. Step 2: Convert to fraction form
    149,736.20/206,656.74 = 86,072.64/x
  3. Step 3: Cross multiply
    149,736.20x = 206,656.74 × 86,072.64
  4. Step 4: Simplify right side
    149,736.20x = 17,787,491,185.59
  5. Step 5: Solve for x
    x = 17,787,491,185.59/149,736.20
  6. Step 6: Final answer
    x = 118,792.19

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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.