Home / 159,169.06-219,684.52-91,231.58

Finding the Fourth Proportional to 159,169.06, 219,684.52 and 91,231.58

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Solution

The fourth proportional to 159,169.06, 219,684.52 and 91,231.58 is: 125,917.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,169.06 : 219,684.52 = 91,231.58 : x
  2. Step 2: Convert to fraction form
    159,169.06/219,684.52 = 91,231.58/x
  3. Step 3: Cross multiply
    159,169.06x = 219,684.52 × 91,231.58
  4. Step 4: Simplify right side
    159,169.06x = 20,042,165,861.14
  5. Step 5: Solve for x
    x = 20,042,165,861.14/159,169.06
  6. Step 6: Final answer
    x = 125,917.47

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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.