Home / 122,067.11-168,378.08-80,674.04

Finding the Fourth Proportional to 122,067.11, 168,378.08 and 80,674.04

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Solution

The fourth proportional to 122,067.11, 168,378.08 and 80,674.04 is: 111,280.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,067.11 : 168,378.08 = 80,674.04 : x
  2. Step 2: Convert to fraction form
    122,067.11/168,378.08 = 80,674.04/x
  3. Step 3: Cross multiply
    122,067.11x = 168,378.08 × 80,674.04
  4. Step 4: Simplify right side
    122,067.11x = 13,583,739,031.49
  5. Step 5: Solve for x
    x = 13,583,739,031.49/122,067.11
  6. Step 6: Final answer
    x = 111,280.91

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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.