Home / 122,928.26-169,640.60-69,213.51

Finding the Fourth Proportional to 122,928.26, 169,640.60 and 69,213.51

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Solution

The fourth proportional to 122,928.26, 169,640.60 and 69,213.51 is: 95,514.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,928.26 : 169,640.60 = 69,213.51 : x
  2. Step 2: Convert to fraction form
    122,928.26/169,640.60 = 69,213.51/x
  3. Step 3: Cross multiply
    122,928.26x = 169,640.60 × 69,213.51
  4. Step 4: Simplify right side
    122,928.26x = 11,741,421,018.44
  5. Step 5: Solve for x
    x = 11,741,421,018.44/122,928.26
  6. Step 6: Final answer
    x = 95,514.42

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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.