Home / 135,410.76-203,120.82-64,296.78

Finding the Fourth Proportional to 135,410.76, 203,120.82 and 64,296.78

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Solution

The fourth proportional to 135,410.76, 203,120.82 and 64,296.78 is: 96,447.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,410.76 : 203,120.82 = 64,296.78 : x
  2. Step 2: Convert to fraction form
    135,410.76/203,120.82 = 64,296.78/x
  3. Step 3: Cross multiply
    135,410.76x = 203,120.82 × 64,296.78
  4. Step 4: Simplify right side
    135,410.76x = 13,060,014,676.96
  5. Step 5: Solve for x
    x = 13,060,014,676.96/135,410.76
  6. Step 6: Final answer
    x = 96,447.39

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1.5x scale

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.