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Finding the Fourth Proportional to 108,738, 163,108.08 and 38,620.08

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Solution

The fourth proportional to 108,738, 163,108.08 and 38,620.08 is: 57,930.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,738 : 163,108.08 = 38,620.08 : x
  2. Step 2: Convert to fraction form
    108,738/163,108.08 = 38,620.08/x
  3. Step 3: Cross multiply
    108,738x = 163,108.08 × 38,620.08
  4. Step 4: Simplify right side
    108,738x = 6,299,247,098.25
  5. Step 5: Solve for x
    x = 6,299,247,098.25/108,738
  6. Step 6: Final answer
    x = 57,930.50

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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.