Home / 122,388.47-168,896.14-74,651.73

Finding the Fourth Proportional to 122,388.47, 168,896.14 and 74,651.73

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Solution

The fourth proportional to 122,388.47, 168,896.14 and 74,651.73 is: 103,019.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,388.47 : 168,896.14 = 74,651.73 : x
  2. Step 2: Convert to fraction form
    122,388.47/168,896.14 = 74,651.73/x
  3. Step 3: Cross multiply
    122,388.47x = 168,896.14 × 74,651.73
  4. Step 4: Simplify right side
    122,388.47x = 12,608,388,221.33
  5. Step 5: Solve for x
    x = 12,608,388,221.33/122,388.47
  6. Step 6: Final answer
    x = 103,019.41

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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.