Home / 135,820.22-203,769.20-65,739.02

Finding the Fourth Proportional to 135,820.22, 203,769.20 and 65,739.02

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Solution

The fourth proportional to 135,820.22, 203,769.20 and 65,739.02 is: 98,627.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,820.22 : 203,769.20 = 65,739.02 : x
  2. Step 2: Convert to fraction form
    135,820.22/203,769.20 = 65,739.02/x
  3. Step 3: Cross multiply
    135,820.22x = 203,769.20 × 65,739.02
  4. Step 4: Simplify right side
    135,820.22x = 13,395,586,659.69
  5. Step 5: Solve for x
    x = 13,395,586,659.69/135,820.22
  6. Step 6: Final answer
    x = 98,627.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.