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Finding the Fourth Proportional to 122,365.36, 168,863.20 and 68,650.36

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Solution

The fourth proportional to 122,365.36, 168,863.20 and 68,650.36 is: 94,736.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,365.36 : 168,863.20 = 68,650.36 : x
  2. Step 2: Convert to fraction form
    122,365.36/168,863.20 = 68,650.36/x
  3. Step 3: Cross multiply
    122,365.36x = 168,863.20 × 68,650.36
  4. Step 4: Simplify right side
    122,365.36x = 11,592,518,876.97
  5. Step 5: Solve for x
    x = 11,592,518,876.97/122,365.36
  6. Step 6: Final answer
    x = 94,736.93

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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.