Home / 143,129.91-214,665.69-54,352.29

Finding the Fourth Proportional to 143,129.91, 214,665.69 and 54,352.29

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Solution

The fourth proportional to 143,129.91, 214,665.69 and 54,352.29 is: 81,517.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,129.91 : 214,665.69 = 54,352.29 : x
  2. Step 2: Convert to fraction form
    143,129.91/214,665.69 = 54,352.29/x
  3. Step 3: Cross multiply
    143,129.91x = 214,665.69 × 54,352.29
  4. Step 4: Simplify right side
    143,129.91x = 11,667,571,835.93
  5. Step 5: Solve for x
    x = 11,667,571,835.93/143,129.91
  6. Step 6: Final answer
    x = 81,517.36

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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.