Home / 135,234.20-203,024.10-72,104.60

Finding the Fourth Proportional to 135,234.20, 203,024.10 and 72,104.60

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Solution

The fourth proportional to 135,234.20, 203,024.10 and 72,104.60 is: 108,249.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,234.20 : 203,024.10 = 72,104.60 : x
  2. Step 2: Convert to fraction form
    135,234.20/203,024.10 = 72,104.60/x
  3. Step 3: Cross multiply
    135,234.20x = 203,024.10 × 72,104.60
  4. Step 4: Simplify right side
    135,234.20x = 14,638,971,520.86
  5. Step 5: Solve for x
    x = 14,638,971,520.86/135,234.20
  6. Step 6: Final answer
    x = 108,249.03

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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.