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Finding the Fourth Proportional to 123,062.63, 169,826.49 and 66,474

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Solution

The fourth proportional to 123,062.63, 169,826.49 and 66,474 is: 91,734.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,062.63 : 169,826.49 = 66,474 : x
  2. Step 2: Convert to fraction form
    123,062.63/169,826.49 = 66,474/x
  3. Step 3: Cross multiply
    123,062.63x = 169,826.49 × 66,474
  4. Step 4: Simplify right side
    123,062.63x = 11,289,046,096.26
  5. Step 5: Solve for x
    x = 11,289,046,096.26/123,062.63
  6. Step 6: Final answer
    x = 91,734.16

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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.