Home / 193,823.20-290,744.40-100,511.20

Finding the Fourth Proportional to 193,823.20, 290,744.40 and 100,511.20

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Solution

The fourth proportional to 193,823.20, 290,744.40 and 100,511.20 is: 150,771.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,823.20 : 290,744.40 = 100,511.20 : x
  2. Step 2: Convert to fraction form
    193,823.20/290,744.40 = 100,511.20/x
  3. Step 3: Cross multiply
    193,823.20x = 290,744.40 × 100,511.20
  4. Step 4: Simplify right side
    193,823.20x = 29,223,068,537.28
  5. Step 5: Solve for x
    x = 29,223,068,537.28/193,823.20
  6. Step 6: Final answer
    x = 150,771.78

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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.