Home / 143,351.49-215,002.09-54,610.32

Finding the Fourth Proportional to 143,351.49, 215,002.09 and 54,610.32

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Solution

The fourth proportional to 143,351.49, 215,002.09 and 54,610.32 is: 81,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,351.49 : 215,002.09 = 54,610.32 : x
  2. Step 2: Convert to fraction form
    143,351.49/215,002.09 = 54,610.32/x
  3. Step 3: Cross multiply
    143,351.49x = 215,002.09 × 54,610.32
  4. Step 4: Simplify right side
    143,351.49x = 11,741,332,799.04
  5. Step 5: Solve for x
    x = 11,741,332,799.04/143,351.49
  6. Step 6: Final answer
    x = 81,905.90

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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.