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Finding the Fourth Proportional to 122,369.86, 168,867.60 and 68,653.63

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Solution

The fourth proportional to 122,369.86, 168,867.60 and 68,653.63 is: 94,740.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,369.86 : 168,867.60 = 68,653.63 : x
  2. Step 2: Convert to fraction form
    122,369.86/168,867.60 = 68,653.63/x
  3. Step 3: Cross multiply
    122,369.86x = 168,867.60 × 68,653.63
  4. Step 4: Simplify right side
    122,369.86x = 11,593,373,729.39
  5. Step 5: Solve for x
    x = 11,593,373,729.39/122,369.86
  6. Step 6: Final answer
    x = 94,740.43

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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.