Home / 193,907.28-290,684.88-69,219.12

Finding the Fourth Proportional to 193,907.28, 290,684.88 and 69,219.12

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Solution

The fourth proportional to 193,907.28, 290,684.88 and 69,219.12 is: 103,765.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,907.28 : 290,684.88 = 69,219.12 : x
  2. Step 2: Convert to fraction form
    193,907.28/290,684.88 = 69,219.12/x
  3. Step 3: Cross multiply
    193,907.28x = 290,684.88 × 69,219.12
  4. Step 4: Simplify right side
    193,907.28x = 20,120,951,590.91
  5. Step 5: Solve for x
    x = 20,120,951,590.91/193,907.28
  6. Step 6: Final answer
    x = 103,765.84

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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.