Home / 159,511.26-220,135.37-87,891.27

Finding the Fourth Proportional to 159,511.26, 220,135.37 and 87,891.27

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Solution

The fourth proportional to 159,511.26, 220,135.37 and 87,891.27 is: 121,295.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,511.26 : 220,135.37 = 87,891.27 : x
  2. Step 2: Convert to fraction form
    159,511.26/220,135.37 = 87,891.27/x
  3. Step 3: Cross multiply
    159,511.26x = 220,135.37 × 87,891.27
  4. Step 4: Simplify right side
    159,511.26x = 19,347,976,470.64
  5. Step 5: Solve for x
    x = 19,347,976,470.64/159,511.26
  6. Step 6: Final answer
    x = 121,295.36

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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.