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Finding the Fourth Proportional to 123,487.67, 170,414.16 and 66,900.26

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Solution

The fourth proportional to 123,487.67, 170,414.16 and 66,900.26 is: 92,323.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,487.67 : 170,414.16 = 66,900.26 : x
  2. Step 2: Convert to fraction form
    123,487.67/170,414.16 = 66,900.26/x
  3. Step 3: Cross multiply
    123,487.67x = 170,414.16 × 66,900.26
  4. Step 4: Simplify right side
    123,487.67x = 11,400,751,611.68
  5. Step 5: Solve for x
    x = 11,400,751,611.68/123,487.67
  6. Step 6: Final answer
    x = 92,323.00

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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.