Home / 122,078.60-168,453.72-68,359.40

Finding the Fourth Proportional to 122,078.60, 168,453.72 and 68,359.40

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Solution

The fourth proportional to 122,078.60, 168,453.72 and 68,359.40 is: 94,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,078.60 : 168,453.72 = 68,359.40 : x
  2. Step 2: Convert to fraction form
    122,078.60/168,453.72 = 68,359.40/x
  3. Step 3: Cross multiply
    122,078.60x = 168,453.72 × 68,359.40
  4. Step 4: Simplify right side
    122,078.60x = 11,515,395,226.97
  5. Step 5: Solve for x
    x = 11,515,395,226.97/122,078.60
  6. Step 6: Final answer
    x = 94,327.71

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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.