Home / 156,918.49-235,245.09-68,105.23

Finding the Fourth Proportional to 156,918.49, 235,245.09 and 68,105.23

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Solution

The fourth proportional to 156,918.49, 235,245.09 and 68,105.23 is: 102,100.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,918.49 : 235,245.09 = 68,105.23 : x
  2. Step 2: Convert to fraction form
    156,918.49/235,245.09 = 68,105.23/x
  3. Step 3: Cross multiply
    156,918.49x = 235,245.09 × 68,105.23
  4. Step 4: Simplify right side
    156,918.49x = 16,021,420,960.82
  5. Step 5: Solve for x
    x = 16,021,420,960.82/156,918.49
  6. Step 6: Final answer
    x = 102,100.27

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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.