Home / 190,069.92-285,181.20-71,774.64

Finding the Fourth Proportional to 190,069.92, 285,181.20 and 71,774.64

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Solution

The fourth proportional to 190,069.92, 285,181.20 and 71,774.64 is: 107,690.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,069.92 : 285,181.20 = 71,774.64 : x
  2. Step 2: Convert to fraction form
    190,069.92/285,181.20 = 71,774.64/x
  3. Step 3: Cross multiply
    190,069.92x = 285,181.20 × 71,774.64
  4. Step 4: Simplify right side
    190,069.92x = 20,468,777,964.77
  5. Step 5: Solve for x
    x = 20,468,777,964.77/190,069.92
  6. Step 6: Final answer
    x = 107,690.78

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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.