Home / 135,650.50-203,269.18-68,990.74

Finding the Fourth Proportional to 135,650.50, 203,269.18 and 68,990.74

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Solution

The fourth proportional to 135,650.50, 203,269.18 and 68,990.74 is: 103,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,650.50 : 203,269.18 = 68,990.74 : x
  2. Step 2: Convert to fraction form
    135,650.50/203,269.18 = 68,990.74/x
  3. Step 3: Cross multiply
    135,650.50x = 203,269.18 × 68,990.74
  4. Step 4: Simplify right side
    135,650.50x = 14,023,691,147.39
  5. Step 5: Solve for x
    x = 14,023,691,147.39/135,650.50
  6. Step 6: Final answer
    x = 103,381.05

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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.