Home / 190,179.81-285,272.96-71,906.85

Finding the Fourth Proportional to 190,179.81, 285,272.96 and 71,906.85

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Solution

The fourth proportional to 190,179.81, 285,272.96 and 71,906.85 is: 107,861.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,179.81 : 285,272.96 = 71,906.85 : x
  2. Step 2: Convert to fraction form
    190,179.81/285,272.96 = 71,906.85/x
  3. Step 3: Cross multiply
    190,179.81x = 285,272.96 × 71,906.85
  4. Step 4: Simplify right side
    190,179.81x = 20,513,079,584.24
  5. Step 5: Solve for x
    x = 20,513,079,584.24/190,179.81
  6. Step 6: Final answer
    x = 107,861.50

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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.