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Finding the Fourth Proportional to 143,823.52, 215,735.11 and 38,642.49

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Solution

The fourth proportional to 143,823.52, 215,735.11 and 38,642.49 is: 57,963.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,823.52 : 215,735.11 = 38,642.49 : x
  2. Step 2: Convert to fraction form
    143,823.52/215,735.11 = 38,642.49/x
  3. Step 3: Cross multiply
    143,823.52x = 215,735.11 × 38,642.49
  4. Step 4: Simplify right side
    143,823.52x = 8,336,541,830.82
  5. Step 5: Solve for x
    x = 8,336,541,830.82/143,823.52
  6. Step 6: Final answer
    x = 57,963.69

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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.