Home / 143,720.56-215,563.83-38,546.92

Finding the Fourth Proportional to 143,720.56, 215,563.83 and 38,546.92

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Solution

The fourth proportional to 143,720.56, 215,563.83 and 38,546.92 is: 57,815.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,720.56 : 215,563.83 = 38,546.92 : x
  2. Step 2: Convert to fraction form
    143,720.56/215,563.83 = 38,546.92/x
  3. Step 3: Cross multiply
    143,720.56x = 215,563.83 × 38,546.92
  4. Step 4: Simplify right side
    143,720.56x = 8,309,321,709.90
  5. Step 5: Solve for x
    x = 8,309,321,709.90/143,720.56
  6. Step 6: Final answer
    x = 57,815.82

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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.