Home / 149,592.39-206,438.49-81,610.44

Finding the Fourth Proportional to 149,592.39, 206,438.49 and 81,610.44

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Solution

The fourth proportional to 149,592.39, 206,438.49 and 81,610.44 is: 112,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,592.39 : 206,438.49 = 81,610.44 : x
  2. Step 2: Convert to fraction form
    149,592.39/206,438.49 = 81,610.44/x
  3. Step 3: Cross multiply
    149,592.39x = 206,438.49 × 81,610.44
  4. Step 4: Simplify right side
    149,592.39x = 16,847,536,001.84
  5. Step 5: Solve for x
    x = 16,847,536,001.84/149,592.39
  6. Step 6: Final answer
    x = 112,622.95

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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.