Home / 143,562.06-215,345.14-54,820.43

Finding the Fourth Proportional to 143,562.06, 215,345.14 and 54,820.43

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Solution

The fourth proportional to 143,562.06, 215,345.14 and 54,820.43 is: 82,231.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,562.06 : 215,345.14 = 54,820.43 : x
  2. Step 2: Convert to fraction form
    143,562.06/215,345.14 = 54,820.43/x
  3. Step 3: Cross multiply
    143,562.06x = 215,345.14 × 54,820.43
  4. Step 4: Simplify right side
    143,562.06x = 11,805,313,173.21
  5. Step 5: Solve for x
    x = 11,805,313,173.21/143,562.06
  6. Step 6: Final answer
    x = 82,231.43

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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.