Home / 135,380.34-202,884.21-115,285.86

Finding the Fourth Proportional to 135,380.34, 202,884.21 and 115,285.86

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Solution

The fourth proportional to 135,380.34, 202,884.21 and 115,285.86 is: 172,770.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,380.34 : 202,884.21 = 115,285.86 : x
  2. Step 2: Convert to fraction form
    135,380.34/202,884.21 = 115,285.86/x
  3. Step 3: Cross multiply
    135,380.34x = 202,884.21 × 115,285.86
  4. Step 4: Simplify right side
    135,380.34x = 23,389,680,630.27
  5. Step 5: Solve for x
    x = 23,389,680,630.27/135,380.34
  6. Step 6: Final answer
    x = 172,770.14

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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.