Home / 123,171.85-170,004.36-80,076.33

Finding the Fourth Proportional to 123,171.85, 170,004.36 and 80,076.33

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Solution

The fourth proportional to 123,171.85, 170,004.36 and 80,076.33 is: 110,523.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,171.85 : 170,004.36 = 80,076.33 : x
  2. Step 2: Convert to fraction form
    123,171.85/170,004.36 = 80,076.33/x
  3. Step 3: Cross multiply
    123,171.85x = 170,004.36 × 80,076.33
  4. Step 4: Simplify right side
    123,171.85x = 13,613,325,533.09
  5. Step 5: Solve for x
    x = 13,613,325,533.09/123,171.85
  6. Step 6: Final answer
    x = 110,523.02

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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.