Home / 68,201.60-102,168.48-60,771.20

Finding the Fourth Proportional to 68,201.60, 102,168.48 and 60,771.20

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Solution

The fourth proportional to 68,201.60, 102,168.48 and 60,771.20 is: 91,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,201.60 : 102,168.48 = 60,771.20 : x
  2. Step 2: Convert to fraction form
    68,201.60/102,168.48 = 60,771.20/x
  3. Step 3: Cross multiply
    68,201.60x = 102,168.48 × 60,771.20
  4. Step 4: Simplify right side
    68,201.60x = 6,208,901,131.78
  5. Step 5: Solve for x
    x = 6,208,901,131.78/68,201.60
  6. Step 6: Final answer
    x = 91,037.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.