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Finding the Fourth Proportional to 123,061.63, 169,825.11 and 66,473

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Solution

The fourth proportional to 123,061.63, 169,825.11 and 66,473 is: 91,732.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,061.63 : 169,825.11 = 66,473 : x
  2. Step 2: Convert to fraction form
    123,061.63/169,825.11 = 66,473/x
  3. Step 3: Cross multiply
    123,061.63x = 169,825.11 × 66,473
  4. Step 4: Simplify right side
    123,061.63x = 11,288,784,537.03
  5. Step 5: Solve for x
    x = 11,288,784,537.03/123,061.63
  6. Step 6: Final answer
    x = 91,732.78

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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.