Home / 123,444.56-170,291.40-80,997.20

Finding the Fourth Proportional to 123,444.56, 170,291.40 and 80,997.20

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Solution

The fourth proportional to 123,444.56, 170,291.40 and 80,997.20 is: 111,735.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,444.56 : 170,291.40 = 80,997.20 : x
  2. Step 2: Convert to fraction form
    123,444.56/170,291.40 = 80,997.20/x
  3. Step 3: Cross multiply
    123,444.56x = 170,291.40 × 80,997.20
  4. Step 4: Simplify right side
    123,444.56x = 13,793,126,584.08
  5. Step 5: Solve for x
    x = 13,793,126,584.08/123,444.56
  6. Step 6: Final answer
    x = 111,735.39

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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.