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Finding the Fourth Proportional to 108,801.54, 163,103.79 and 38,664.45

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Solution

The fourth proportional to 108,801.54, 163,103.79 and 38,664.45 is: 57,961.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,801.54 : 163,103.79 = 38,664.45 : x
  2. Step 2: Convert to fraction form
    108,801.54/163,103.79 = 38,664.45/x
  3. Step 3: Cross multiply
    108,801.54x = 163,103.79 × 38,664.45
  4. Step 4: Simplify right side
    108,801.54x = 6,306,318,333.27
  5. Step 5: Solve for x
    x = 6,306,318,333.27/108,801.54
  6. Step 6: Final answer
    x = 57,961.66

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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.