Home / 122,218.80-168,669.72-79,891.44

Finding the Fourth Proportional to 122,218.80, 168,669.72 and 79,891.44

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Solution

The fourth proportional to 122,218.80, 168,669.72 and 79,891.44 is: 110,255.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,218.80 : 168,669.72 = 79,891.44 : x
  2. Step 2: Convert to fraction form
    122,218.80/168,669.72 = 79,891.44/x
  3. Step 3: Cross multiply
    122,218.80x = 168,669.72 × 79,891.44
  4. Step 4: Simplify right side
    122,218.80x = 13,475,266,815.20
  5. Step 5: Solve for x
    x = 13,475,266,815.20/122,218.80
  6. Step 6: Final answer
    x = 110,255.27

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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.