Home / 149,893.07-206,855.14-81,912.91

Finding the Fourth Proportional to 149,893.07, 206,855.14 and 81,912.91

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Solution

The fourth proportional to 149,893.07, 206,855.14 and 81,912.91 is: 113,041.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,893.07 : 206,855.14 = 81,912.91 : x
  2. Step 2: Convert to fraction form
    149,893.07/206,855.14 = 81,912.91/x
  3. Step 3: Cross multiply
    149,893.07x = 206,855.14 × 81,912.91
  4. Step 4: Simplify right side
    149,893.07x = 16,944,105,431.58
  5. Step 5: Solve for x
    x = 16,944,105,431.58/149,893.07
  6. Step 6: Final answer
    x = 113,041.29

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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.