Home / 192,712.17-289,074.60-66,351.09

Finding the Fourth Proportional to 192,712.17, 289,074.60 and 66,351.09

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Solution

The fourth proportional to 192,712.17, 289,074.60 and 66,351.09 is: 99,528.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,712.17 : 289,074.60 = 66,351.09 : x
  2. Step 2: Convert to fraction form
    192,712.17/289,074.60 = 66,351.09/x
  3. Step 3: Cross multiply
    192,712.17x = 289,074.60 × 66,351.09
  4. Step 4: Simplify right side
    192,712.17x = 19,180,414,801.31
  5. Step 5: Solve for x
    x = 19,180,414,801.31/192,712.17
  6. Step 6: Final answer
    x = 99,528.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.