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Finding the Fourth Proportional to 143,691.58, 215,537.36 and 43,852.28

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Solution

The fourth proportional to 143,691.58, 215,537.36 and 43,852.28 is: 65,778.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,691.58 : 215,537.36 = 43,852.28 : x
  2. Step 2: Convert to fraction form
    143,691.58/215,537.36 = 43,852.28/x
  3. Step 3: Cross multiply
    143,691.58x = 215,537.36 × 43,852.28
  4. Step 4: Simplify right side
    143,691.58x = 9,451,804,661.18
  5. Step 5: Solve for x
    x = 9,451,804,661.18/143,691.58
  6. Step 6: Final answer
    x = 65,778.42

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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.