Home / 123,201.06-170,016.75-66,611.22

Finding the Fourth Proportional to 123,201.06, 170,016.75 and 66,611.22

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Solution

The fourth proportional to 123,201.06, 170,016.75 and 66,611.22 is: 91,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,201.06 : 170,016.75 = 66,611.22 : x
  2. Step 2: Convert to fraction form
    123,201.06/170,016.75 = 66,611.22/x
  3. Step 3: Cross multiply
    123,201.06x = 170,016.75 × 66,611.22
  4. Step 4: Simplify right side
    123,201.06x = 11,325,023,137.94
  5. Step 5: Solve for x
    x = 11,325,023,137.94/123,201.06
  6. Step 6: Final answer
    x = 91,923.10

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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.