Home / 123,200.80-170,016.96-66,612.04

Finding the Fourth Proportional to 123,200.80, 170,016.96 and 66,612.04

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Solution

The fourth proportional to 123,200.80, 170,016.96 and 66,612.04 is: 91,924.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,200.80 : 170,016.96 = 66,612.04 : x
  2. Step 2: Convert to fraction form
    123,200.80/170,016.96 = 66,612.04/x
  3. Step 3: Cross multiply
    123,200.80x = 170,016.96 × 66,612.04
  4. Step 4: Simplify right side
    123,200.80x = 11,325,176,540.20
  5. Step 5: Solve for x
    x = 11,325,176,540.20/123,200.80
  6. Step 6: Final answer
    x = 91,924.54

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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.