Home / 122,908.32-169,836.48-106,112.16

Finding the Fourth Proportional to 122,908.32, 169,836.48 and 106,112.16

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Solution

The fourth proportional to 122,908.32, 169,836.48 and 106,112.16 is: 146,627.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,908.32 : 169,836.48 = 106,112.16 : x
  2. Step 2: Convert to fraction form
    122,908.32/169,836.48 = 106,112.16/x
  3. Step 3: Cross multiply
    122,908.32x = 169,836.48 × 106,112.16
  4. Step 4: Simplify right side
    122,908.32x = 18,021,715,739.60
  5. Step 5: Solve for x
    x = 18,021,715,739.60/122,908.32
  6. Step 6: Final answer
    x = 146,627.31

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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.