Home / 187,964.76-281,999.22-86,793.75

Finding the Fourth Proportional to 187,964.76, 281,999.22 and 86,793.75

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Solution

The fourth proportional to 187,964.76, 281,999.22 and 86,793.75 is: 130,214.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,964.76 : 281,999.22 = 86,793.75 : x
  2. Step 2: Convert to fraction form
    187,964.76/281,999.22 = 86,793.75/x
  3. Step 3: Cross multiply
    187,964.76x = 281,999.22 × 86,793.75
  4. Step 4: Simplify right side
    187,964.76x = 24,475,769,800.88
  5. Step 5: Solve for x
    x = 24,475,769,800.88/187,964.76
  6. Step 6: Final answer
    x = 130,214.67

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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.