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Finding the Fourth Proportional to 143,371.41, 215,100.84 and 73,299.93

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Solution

The fourth proportional to 143,371.41, 215,100.84 and 73,299.93 is: 109,972.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,371.41 : 215,100.84 = 73,299.93 : x
  2. Step 2: Convert to fraction form
    143,371.41/215,100.84 = 73,299.93/x
  3. Step 3: Cross multiply
    143,371.41x = 215,100.84 × 73,299.93
  4. Step 4: Simplify right side
    143,371.41x = 15,766,876,514.94
  5. Step 5: Solve for x
    x = 15,766,876,514.94/143,371.41
  6. Step 6: Final answer
    x = 109,972.25

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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.