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Finding the Fourth Proportional to 123,175.68, 169,982.52 and 66,587.04

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Solution

The fourth proportional to 123,175.68, 169,982.52 and 66,587.04 is: 91,890.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,175.68 : 169,982.52 = 66,587.04 : x
  2. Step 2: Convert to fraction form
    123,175.68/169,982.52 = 66,587.04/x
  3. Step 3: Cross multiply
    123,175.68x = 169,982.52 × 66,587.04
  4. Step 4: Simplify right side
    123,175.68x = 11,318,632,858.54
  5. Step 5: Solve for x
    x = 11,318,632,858.54/123,175.68
  6. Step 6: Final answer
    x = 91,890.16

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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.