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Finding the Fourth Proportional to 143,701.80, 215,552.70 and 50,195.40

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Solution

The fourth proportional to 143,701.80, 215,552.70 and 50,195.40 is: 75,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,701.80 : 215,552.70 = 50,195.40 : x
  2. Step 2: Convert to fraction form
    143,701.80/215,552.70 = 50,195.40/x
  3. Step 3: Cross multiply
    143,701.80x = 215,552.70 × 50,195.40
  4. Step 4: Simplify right side
    143,701.80x = 10,819,753,997.58
  5. Step 5: Solve for x
    x = 10,819,753,997.58/143,701.80
  6. Step 6: Final answer
    x = 75,293.10

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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.