Home / 122,388.37-168,908.09-82,185.84

Finding the Fourth Proportional to 122,388.37, 168,908.09 and 82,185.84

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Solution

The fourth proportional to 122,388.37, 168,908.09 and 82,185.84 is: 113,424.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,388.37 : 168,908.09 = 82,185.84 : x
  2. Step 2: Convert to fraction form
    122,388.37/168,908.09 = 82,185.84/x
  3. Step 3: Cross multiply
    122,388.37x = 168,908.09 × 82,185.84
  4. Step 4: Simplify right side
    122,388.37x = 13,881,852,848.52
  5. Step 5: Solve for x
    x = 13,881,852,848.52/122,388.37
  6. Step 6: Final answer
    x = 113,424.61

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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.