Home / 135,278.20-202,917.30-131,390.20

Finding the Fourth Proportional to 135,278.20, 202,917.30 and 131,390.20

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Solution

The fourth proportional to 135,278.20, 202,917.30 and 131,390.20 is: 197,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,278.20 : 202,917.30 = 131,390.20 : x
  2. Step 2: Convert to fraction form
    135,278.20/202,917.30 = 131,390.20/x
  3. Step 3: Cross multiply
    135,278.20x = 202,917.30 × 131,390.20
  4. Step 4: Simplify right side
    135,278.20x = 26,661,344,630.46
  5. Step 5: Solve for x
    x = 26,661,344,630.46/135,278.20
  6. Step 6: Final answer
    x = 197,085.30

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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.