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Finding the Fourth Proportional to 123,104.92, 169,884.84 and 66,516.16

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Solution

The fourth proportional to 123,104.92, 169,884.84 and 66,516.16 is: 91,792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,104.92 : 169,884.84 = 66,516.16 : x
  2. Step 2: Convert to fraction form
    123,104.92/169,884.84 = 66,516.16/x
  3. Step 3: Cross multiply
    123,104.92x = 169,884.84 × 66,516.16
  4. Step 4: Simplify right side
    123,104.92x = 11,300,087,199.01
  5. Step 5: Solve for x
    x = 11,300,087,199.01/123,104.92
  6. Step 6: Final answer
    x = 91,792.33

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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.