Home / 143,245.20-214,867.80-73,261.20

Finding the Fourth Proportional to 143,245.20, 214,867.80 and 73,261.20

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Solution

The fourth proportional to 143,245.20, 214,867.80 and 73,261.20 is: 109,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,245.20 : 214,867.80 = 73,261.20 : x
  2. Step 2: Convert to fraction form
    143,245.20/214,867.80 = 73,261.20/x
  3. Step 3: Cross multiply
    143,245.20x = 214,867.80 × 73,261.20
  4. Step 4: Simplify right side
    143,245.20x = 15,741,472,869.36
  5. Step 5: Solve for x
    x = 15,741,472,869.36/143,245.20
  6. Step 6: Final answer
    x = 109,891.80

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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.