Home / 122,403.30-168,873.24-79,986.44

Finding the Fourth Proportional to 122,403.30, 168,873.24 and 79,986.44

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Solution

The fourth proportional to 122,403.30, 168,873.24 and 79,986.44 is: 110,352.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,403.30 : 168,873.24 = 79,986.44 : x
  2. Step 2: Convert to fraction form
    122,403.30/168,873.24 = 79,986.44/x
  3. Step 3: Cross multiply
    122,403.30x = 168,873.24 × 79,986.44
  4. Step 4: Simplify right side
    122,403.30x = 13,507,568,601.16
  5. Step 5: Solve for x
    x = 13,507,568,601.16/122,403.30
  6. Step 6: Final answer
    x = 110,352.98

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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.