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Finding the Fourth Proportional to 143,363.39, 215,040.15 and 36,748.38

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Solution

The fourth proportional to 143,363.39, 215,040.15 and 36,748.38 is: 55,121.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,363.39 : 215,040.15 = 36,748.38 : x
  2. Step 2: Convert to fraction form
    143,363.39/215,040.15 = 36,748.38/x
  3. Step 3: Cross multiply
    143,363.39x = 215,040.15 × 36,748.38
  4. Step 4: Simplify right side
    143,363.39x = 7,902,377,147.46
  5. Step 5: Solve for x
    x = 7,902,377,147.46/143,363.39
  6. Step 6: Final answer
    x = 55,121.31

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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.