Home / 122,696.44-169,309.38-71,721.10

Finding the Fourth Proportional to 122,696.44, 169,309.38 and 71,721.10

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Solution

The fourth proportional to 122,696.44, 169,309.38 and 71,721.10 is: 98,968.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,696.44 : 169,309.38 = 71,721.10 : x
  2. Step 2: Convert to fraction form
    122,696.44/169,309.38 = 71,721.10/x
  3. Step 3: Cross multiply
    122,696.44x = 169,309.38 × 71,721.10
  4. Step 4: Simplify right side
    122,696.44x = 12,143,054,973.92
  5. Step 5: Solve for x
    x = 12,143,054,973.92/122,696.44
  6. Step 6: Final answer
    x = 98,968.27

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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.