Home / 149,923.28-206,893.64-81,940.24

Finding the Fourth Proportional to 149,923.28, 206,893.64 and 81,940.24

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Solution

The fourth proportional to 149,923.28, 206,893.64 and 81,940.24 is: 113,077.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,923.28 : 206,893.64 = 81,940.24 : x
  2. Step 2: Convert to fraction form
    149,923.28/206,893.64 = 81,940.24/x
  3. Step 3: Cross multiply
    149,923.28x = 206,893.64 × 81,940.24
  4. Step 4: Simplify right side
    149,923.28x = 16,952,914,516.07
  5. Step 5: Solve for x
    x = 16,952,914,516.07/149,923.28
  6. Step 6: Final answer
    x = 113,077.27

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1.5x scale

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.