Home / 196,178.77-270,735.60-115,609.69

Finding the Fourth Proportional to 196,178.77, 270,735.60 and 115,609.69

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Solution

The fourth proportional to 196,178.77, 270,735.60 and 115,609.69 is: 159,546.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,178.77 : 270,735.60 = 115,609.69 : x
  2. Step 2: Convert to fraction form
    196,178.77/270,735.60 = 115,609.69/x
  3. Step 3: Cross multiply
    196,178.77x = 270,735.60 × 115,609.69
  4. Step 4: Simplify right side
    196,178.77x = 31,299,659,559.92
  5. Step 5: Solve for x
    x = 31,299,659,559.92/196,178.77
  6. Step 6: Final answer
    x = 159,546.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.