Home / 122,657.64-169,272.33-68,942.49

Finding the Fourth Proportional to 122,657.64, 169,272.33 and 68,942.49

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Solution

The fourth proportional to 122,657.64, 169,272.33 and 68,942.49 is: 95,143.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,657.64 : 169,272.33 = 68,942.49 : x
  2. Step 2: Convert to fraction form
    122,657.64/169,272.33 = 68,942.49/x
  3. Step 3: Cross multiply
    122,657.64x = 169,272.33 × 68,942.49
  4. Step 4: Simplify right side
    122,657.64x = 11,670,055,918.30
  5. Step 5: Solve for x
    x = 11,670,055,918.30/122,657.64
  6. Step 6: Final answer
    x = 95,143.33

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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.