Home / 127,768.96-176,342.16-71,198.56

Finding the Fourth Proportional to 127,768.96, 176,342.16 and 71,198.56

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Solution

The fourth proportional to 127,768.96, 176,342.16 and 71,198.56 is: 98,265.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,768.96 : 176,342.16 = 71,198.56 : x
  2. Step 2: Convert to fraction form
    127,768.96/176,342.16 = 71,198.56/x
  3. Step 3: Cross multiply
    127,768.96x = 176,342.16 × 71,198.56
  4. Step 4: Simplify right side
    127,768.96x = 12,555,307,859.29
  5. Step 5: Solve for x
    x = 12,555,307,859.29/127,768.96
  6. Step 6: Final answer
    x = 98,265.71

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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.