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Finding the Fourth Proportional to 108,440.65, 149,648.08 and 60,694

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Solution

The fourth proportional to 108,440.65, 149,648.08 and 60,694 is: 83,757.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,440.65 : 149,648.08 = 60,694 : x
  2. Step 2: Convert to fraction form
    108,440.65/149,648.08 = 60,694/x
  3. Step 3: Cross multiply
    108,440.65x = 149,648.08 × 60,694
  4. Step 4: Simplify right side
    108,440.65x = 9,082,740,567.52
  5. Step 5: Solve for x
    x = 9,082,740,567.52/108,440.65
  6. Step 6: Final answer
    x = 83,757.71

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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.