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Finding the Fourth Proportional to 143,273.44, 214,854 and 84,124

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Solution

The fourth proportional to 143,273.44, 214,854 and 84,124 is: 126,153.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,273.44 : 214,854 = 84,124 : x
  2. Step 2: Convert to fraction form
    143,273.44/214,854 = 84,124/x
  3. Step 3: Cross multiply
    143,273.44x = 214,854 × 84,124
  4. Step 4: Simplify right side
    143,273.44x = 18,074,377,896
  5. Step 5: Solve for x
    x = 18,074,377,896/143,273.44
  6. Step 6: Final answer
    x = 126,153.03

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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.