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Finding the Fourth Proportional to 108,736.94, 162,951.08 and 45,488.90

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Solution

The fourth proportional to 108,736.94, 162,951.08 and 45,488.90 is: 68,168.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,736.94 : 162,951.08 = 45,488.90 : x
  2. Step 2: Convert to fraction form
    108,736.94/162,951.08 = 45,488.90/x
  3. Step 3: Cross multiply
    108,736.94x = 162,951.08 × 45,488.90
  4. Step 4: Simplify right side
    108,736.94x = 7,412,465,383.01
  5. Step 5: Solve for x
    x = 7,412,465,383.01/108,736.94
  6. Step 6: Final answer
    x = 68,168.79

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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.