Home / 149,399.00-206,164.63-81,414.53

Finding the Fourth Proportional to 149,399.00, 206,164.63 and 81,414.53

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Solution

The fourth proportional to 149,399.00, 206,164.63 and 81,414.53 is: 112,348.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,399.00 : 206,164.63 = 81,414.53 : x
  2. Step 2: Convert to fraction form
    149,399.00/206,164.63 = 81,414.53/x
  3. Step 3: Cross multiply
    149,399.00x = 206,164.63 × 81,414.53
  4. Step 4: Simplify right side
    149,399.00x = 16,784,795,219.71
  5. Step 5: Solve for x
    x = 16,784,795,219.71/149,399.00
  6. Step 6: Final answer
    x = 112,348.78

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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.