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Finding the Fourth Proportional to 145,107, 217,660.47 and 95,175.56

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Solution

The fourth proportional to 145,107, 217,660.47 and 95,175.56 is: 142,763.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,107 : 217,660.47 = 95,175.56 : x
  2. Step 2: Convert to fraction form
    145,107/217,660.47 = 95,175.56/x
  3. Step 3: Cross multiply
    145,107x = 217,660.47 × 95,175.56
  4. Step 4: Simplify right side
    145,107x = 20,715,957,309.36
  5. Step 5: Solve for x
    x = 20,715,957,309.36/145,107
  6. Step 6: Final answer
    x = 142,763.32

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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.