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Finding the Fourth Proportional to 122,168.63, 168,590.60 and 68,453.48

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Solution

The fourth proportional to 122,168.63, 168,590.60 and 68,453.48 is: 94,464.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,168.63 : 168,590.60 = 68,453.48 : x
  2. Step 2: Convert to fraction form
    122,168.63/168,590.60 = 68,453.48/x
  3. Step 3: Cross multiply
    122,168.63x = 168,590.60 × 68,453.48
  4. Step 4: Simplify right side
    122,168.63x = 11,540,613,601.20
  5. Step 5: Solve for x
    x = 11,540,613,601.20/122,168.63
  6. Step 6: Final answer
    x = 94,464.62

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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.