Home / 149,923.40-206,893.81-81,940.37

Finding the Fourth Proportional to 149,923.40, 206,893.81 and 81,940.37

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Solution

The fourth proportional to 149,923.40, 206,893.81 and 81,940.37 is: 113,077.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,923.40 : 206,893.81 = 81,940.37 : x
  2. Step 2: Convert to fraction form
    149,923.40/206,893.81 = 81,940.37/x
  3. Step 3: Cross multiply
    149,923.40x = 206,893.81 × 81,940.37
  4. Step 4: Simplify right side
    149,923.40x = 16,952,954,932.41
  5. Step 5: Solve for x
    x = 16,952,954,932.41/149,923.40
  6. Step 6: Final answer
    x = 113,077.44

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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.