Home / 192,768.60-289,196.10-74,429.40

Finding the Fourth Proportional to 192,768.60, 289,196.10 and 74,429.40

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Solution

The fourth proportional to 192,768.60, 289,196.10 and 74,429.40 is: 111,660.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,768.60 : 289,196.10 = 74,429.40 : x
  2. Step 2: Convert to fraction form
    192,768.60/289,196.10 = 74,429.40/x
  3. Step 3: Cross multiply
    192,768.60x = 289,196.10 × 74,429.40
  4. Step 4: Simplify right side
    192,768.60x = 21,524,692,205.34
  5. Step 5: Solve for x
    x = 21,524,692,205.34/192,768.60
  6. Step 6: Final answer
    x = 111,660.78

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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.