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Finding the Fourth Proportional to 131,753.81, 197,171.04 and 107,784.29

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Solution

The fourth proportional to 131,753.81, 197,171.04 and 107,784.29 is: 161,300.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,753.81 : 197,171.04 = 107,784.29 : x
  2. Step 2: Convert to fraction form
    131,753.81/197,171.04 = 107,784.29/x
  3. Step 3: Cross multiply
    131,753.81x = 197,171.04 × 107,784.29
  4. Step 4: Simplify right side
    131,753.81x = 21,251,940,554.96
  5. Step 5: Solve for x
    x = 21,251,940,554.96/131,753.81
  6. Step 6: Final answer
    x = 161,300.39

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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.