Home / 140,621.92-210,867.26-81,474.50

Finding the Fourth Proportional to 140,621.92, 210,867.26 and 81,474.50

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Solution

The fourth proportional to 140,621.92, 210,867.26 and 81,474.50 is: 122,173.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,621.92 : 210,867.26 = 81,474.50 : x
  2. Step 2: Convert to fraction form
    140,621.92/210,867.26 = 81,474.50/x
  3. Step 3: Cross multiply
    140,621.92x = 210,867.26 × 81,474.50
  4. Step 4: Simplify right side
    140,621.92x = 17,180,304,694.67
  5. Step 5: Solve for x
    x = 17,180,304,694.67/140,621.92
  6. Step 6: Final answer
    x = 122,173.73

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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.