Home / 143,259.19-214,982.03-54,513.43

Finding the Fourth Proportional to 143,259.19, 214,982.03 and 54,513.43

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Solution

The fourth proportional to 143,259.19, 214,982.03 and 54,513.43 is: 81,805.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,259.19 : 214,982.03 = 54,513.43 : x
  2. Step 2: Convert to fraction form
    143,259.19/214,982.03 = 54,513.43/x
  3. Step 3: Cross multiply
    143,259.19x = 214,982.03 × 54,513.43
  4. Step 4: Simplify right side
    143,259.19x = 11,719,407,843.66
  5. Step 5: Solve for x
    x = 11,719,407,843.66/143,259.19
  6. Step 6: Final answer
    x = 81,805.63

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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.