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Finding the Fourth Proportional to 117,065.75, 161,551.87 and 63,351.88

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Solution

The fourth proportional to 117,065.75, 161,551.87 and 63,351.88 is: 87,426.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,065.75 : 161,551.87 = 63,351.88 : x
  2. Step 2: Convert to fraction form
    117,065.75/161,551.87 = 63,351.88/x
  3. Step 3: Cross multiply
    117,065.75x = 161,551.87 × 63,351.88
  4. Step 4: Simplify right side
    117,065.75x = 10,234,614,841.39
  5. Step 5: Solve for x
    x = 10,234,614,841.39/117,065.75
  6. Step 6: Final answer
    x = 87,426.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.