Home / 122,734.58-169,370.78-80,292.20

Finding the Fourth Proportional to 122,734.58, 169,370.78 and 80,292.20

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Solution

The fourth proportional to 122,734.58, 169,370.78 and 80,292.20 is: 110,801.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,734.58 : 169,370.78 = 80,292.20 : x
  2. Step 2: Convert to fraction form
    122,734.58/169,370.78 = 80,292.20/x
  3. Step 3: Cross multiply
    122,734.58x = 169,370.78 × 80,292.20
  4. Step 4: Simplify right side
    122,734.58x = 13,599,151,293.60
  5. Step 5: Solve for x
    x = 13,599,151,293.60/122,734.58
  6. Step 6: Final answer
    x = 110,801.31

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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.