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Finding the Fourth Proportional to 108,109.38, 149,189.55 and 60,363.54

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Solution

The fourth proportional to 108,109.38, 149,189.55 and 60,363.54 is: 83,300.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,109.38 : 149,189.55 = 60,363.54 : x
  2. Step 2: Convert to fraction form
    108,109.38/149,189.55 = 60,363.54/x
  3. Step 3: Cross multiply
    108,109.38x = 149,189.55 × 60,363.54
  4. Step 4: Simplify right side
    108,109.38x = 9,005,609,369.01
  5. Step 5: Solve for x
    x = 9,005,609,369.01/108,109.38
  6. Step 6: Final answer
    x = 83,300.91

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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.