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Finding the Fourth Proportional to 123,383.66, 170,268.68 and 66,794.63

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Solution

The fourth proportional to 123,383.66, 170,268.68 and 66,794.63 is: 92,176.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,383.66 : 170,268.68 = 66,794.63 : x
  2. Step 2: Convert to fraction form
    123,383.66/170,268.68 = 66,794.63/x
  3. Step 3: Cross multiply
    123,383.66x = 170,268.68 × 66,794.63
  4. Step 4: Simplify right side
    123,383.66x = 11,373,032,796.83
  5. Step 5: Solve for x
    x = 11,373,032,796.83/123,383.66
  6. Step 6: Final answer
    x = 92,176.17

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1.5x scale

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.