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Finding the Fourth Proportional to 143,375.84, 215,063.52 and 38,195.12

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Solution

The fourth proportional to 143,375.84, 215,063.52 and 38,195.12 is: 57,292.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,375.84 : 215,063.52 = 38,195.12 : x
  2. Step 2: Convert to fraction form
    143,375.84/215,063.52 = 38,195.12/x
  3. Step 3: Cross multiply
    143,375.84x = 215,063.52 × 38,195.12
  4. Step 4: Simplify right side
    143,375.84x = 8,214,376,954.02
  5. Step 5: Solve for x
    x = 8,214,376,954.02/143,375.84
  6. Step 6: Final answer
    x = 57,292.62

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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.