Home / 192,905.10-289,314.45-126,809.10

Finding the Fourth Proportional to 192,905.10, 289,314.45 and 126,809.10

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Solution

The fourth proportional to 192,905.10, 289,314.45 and 126,809.10 is: 190,185.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,905.10 : 289,314.45 = 126,809.10 : x
  2. Step 2: Convert to fraction form
    192,905.10/289,314.45 = 126,809.10/x
  3. Step 3: Cross multiply
    192,905.10x = 289,314.45 × 126,809.10
  4. Step 4: Simplify right side
    192,905.10x = 36,687,705,021.50
  5. Step 5: Solve for x
    x = 36,687,705,021.50/192,905.10
  6. Step 6: Final answer
    x = 190,185.25

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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.