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Finding the Fourth Proportional to 160,162.56, 220,993.92 and 100,519.68

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Solution

The fourth proportional to 160,162.56, 220,993.92 and 100,519.68 is: 138,698.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,162.56 : 220,993.92 = 100,519.68 : x
  2. Step 2: Convert to fraction form
    160,162.56/220,993.92 = 100,519.68/x
  3. Step 3: Cross multiply
    160,162.56x = 220,993.92 × 100,519.68
  4. Step 4: Simplify right side
    160,162.56x = 22,214,238,120.35
  5. Step 5: Solve for x
    x = 22,214,238,120.35/160,162.56
  6. Step 6: Final answer
    x = 138,698.07

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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.