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Finding the Fourth Proportional to 143,960.83, 215,954.20 and 38,777.47

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Solution

The fourth proportional to 143,960.83, 215,954.20 and 38,777.47 is: 58,169.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,960.83 : 215,954.20 = 38,777.47 : x
  2. Step 2: Convert to fraction form
    143,960.83/215,954.20 = 38,777.47/x
  3. Step 3: Cross multiply
    143,960.83x = 215,954.20 × 38,777.47
  4. Step 4: Simplify right side
    143,960.83x = 8,374,157,020.46
  5. Step 5: Solve for x
    x = 8,374,157,020.46/143,960.83
  6. Step 6: Final answer
    x = 58,169.69

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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.