Home / 122,168.25-168,601.91-71,876.97

Finding the Fourth Proportional to 122,168.25, 168,601.91 and 71,876.97

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Solution

The fourth proportional to 122,168.25, 168,601.91 and 71,876.97 is: 99,195.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,168.25 : 168,601.91 = 71,876.97 : x
  2. Step 2: Convert to fraction form
    122,168.25/168,601.91 = 71,876.97/x
  3. Step 3: Cross multiply
    122,168.25x = 168,601.91 × 71,876.97
  4. Step 4: Simplify right side
    122,168.25x = 12,118,594,067.63
  5. Step 5: Solve for x
    x = 12,118,594,067.63/122,168.25
  6. Step 6: Final answer
    x = 99,195.94

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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.