Home / 135,835.20-203,906.40-80,462.40

Finding the Fourth Proportional to 135,835.20, 203,906.40 and 80,462.40

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Solution

The fourth proportional to 135,835.20, 203,906.40 and 80,462.40 is: 120,784.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,835.20 : 203,906.40 = 80,462.40 : x
  2. Step 2: Convert to fraction form
    135,835.20/203,906.40 = 80,462.40/x
  3. Step 3: Cross multiply
    135,835.20x = 203,906.40 × 80,462.40
  4. Step 4: Simplify right side
    135,835.20x = 16,406,798,319.36
  5. Step 5: Solve for x
    x = 16,406,798,319.36/135,835.20
  6. Step 6: Final answer
    x = 120,784.59

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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.