Home / 156,736.88-235,116.48-77,771.60

Finding the Fourth Proportional to 156,736.88, 235,116.48 and 77,771.60

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Solution

The fourth proportional to 156,736.88, 235,116.48 and 77,771.60 is: 116,662.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,736.88 : 235,116.48 = 77,771.60 : x
  2. Step 2: Convert to fraction form
    156,736.88/235,116.48 = 77,771.60/x
  3. Step 3: Cross multiply
    156,736.88x = 235,116.48 × 77,771.60
  4. Step 4: Simplify right side
    156,736.88x = 18,285,384,835.97
  5. Step 5: Solve for x
    x = 18,285,384,835.97/156,736.88
  6. Step 6: Final answer
    x = 116,662.94

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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.