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Finding the Fourth Proportional to 143,694.72, 215,542.08 and 43,855.44

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Solution

The fourth proportional to 143,694.72, 215,542.08 and 43,855.44 is: 65,783.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,694.72 : 215,542.08 = 43,855.44 : x
  2. Step 2: Convert to fraction form
    143,694.72/215,542.08 = 43,855.44/x
  3. Step 3: Cross multiply
    143,694.72x = 215,542.08 × 43,855.44
  4. Step 4: Simplify right side
    143,694.72x = 9,452,691,948.63
  5. Step 5: Solve for x
    x = 9,452,691,948.63/143,694.72
  6. Step 6: Final answer
    x = 65,783.15

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1.5x scale

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.