Home / 122,212.44-168,616.03-76,935.62

Finding the Fourth Proportional to 122,212.44, 168,616.03 and 76,935.62

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Solution

The fourth proportional to 122,212.44, 168,616.03 and 76,935.62 is: 106,147.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,212.44 : 168,616.03 = 76,935.62 : x
  2. Step 2: Convert to fraction form
    122,212.44/168,616.03 = 76,935.62/x
  3. Step 3: Cross multiply
    122,212.44x = 168,616.03 × 76,935.62
  4. Step 4: Simplify right side
    122,212.44x = 12,972,578,809.99
  5. Step 5: Solve for x
    x = 12,972,578,809.99/122,212.44
  6. Step 6: Final answer
    x = 106,147.78

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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.