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Finding the Fourth Proportional to 143,702.97, 215,554.46 and 43,863.68

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Solution

The fourth proportional to 143,702.97, 215,554.46 and 43,863.68 is: 65,795.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,702.97 : 215,554.46 = 43,863.68 : x
  2. Step 2: Convert to fraction form
    143,702.97/215,554.46 = 43,863.68/x
  3. Step 3: Cross multiply
    143,702.97x = 215,554.46 × 43,863.68
  4. Step 4: Simplify right side
    143,702.97x = 9,455,010,558.92
  5. Step 5: Solve for x
    x = 9,455,010,558.92/143,702.97
  6. Step 6: Final answer
    x = 65,795.51

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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.