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Finding the Fourth Proportional to 159,200.65, 219,698.71 and 91,216.26

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Solution

The fourth proportional to 159,200.65, 219,698.71 and 91,216.26 is: 125,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,200.65 : 219,698.71 = 91,216.26 : x
  2. Step 2: Convert to fraction form
    159,200.65/219,698.71 = 91,216.26/x
  3. Step 3: Cross multiply
    159,200.65x = 219,698.71 × 91,216.26
  4. Step 4: Simplify right side
    159,200.65x = 20,040,094,653.02
  5. Step 5: Solve for x
    x = 20,040,094,653.02/159,200.65
  6. Step 6: Final answer
    x = 125,879.48

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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.