Home / 123,173.94-169,979.97-66,585.42

Finding the Fourth Proportional to 123,173.94, 169,979.97 and 66,585.42

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Solution

The fourth proportional to 123,173.94, 169,979.97 and 66,585.42 is: 91,887.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,173.94 : 169,979.97 = 66,585.42 : x
  2. Step 2: Convert to fraction form
    123,173.94/169,979.97 = 66,585.42/x
  3. Step 3: Cross multiply
    123,173.94x = 169,979.97 × 66,585.42
  4. Step 4: Simplify right side
    123,173.94x = 11,318,187,694.04
  5. Step 5: Solve for x
    x = 11,318,187,694.04/123,173.94
  6. Step 6: Final answer
    x = 91,887.84

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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.