Home / 140,546.46-210,481.83-80,392.62

Finding the Fourth Proportional to 140,546.46, 210,481.83 and 80,392.62

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Solution

The fourth proportional to 140,546.46, 210,481.83 and 80,392.62 is: 120,395.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,546.46 : 210,481.83 = 80,392.62 : x
  2. Step 2: Convert to fraction form
    140,546.46/210,481.83 = 80,392.62/x
  3. Step 3: Cross multiply
    140,546.46x = 210,481.83 × 80,392.62
  4. Step 4: Simplify right side
    140,546.46x = 16,921,185,776.09
  5. Step 5: Solve for x
    x = 16,921,185,776.09/140,546.46
  6. Step 6: Final answer
    x = 120,395.67

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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.