Home / 131,122.24-196,333.44-68,661.44

Finding the Fourth Proportional to 131,122.24, 196,333.44 and 68,661.44

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Solution

The fourth proportional to 131,122.24, 196,333.44 and 68,661.44 is: 102,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,122.24 : 196,333.44 = 68,661.44 : x
  2. Step 2: Convert to fraction form
    131,122.24/196,333.44 = 68,661.44/x
  3. Step 3: Cross multiply
    131,122.24x = 196,333.44 × 68,661.44
  4. Step 4: Simplify right side
    131,122.24x = 13,480,536,710.55
  5. Step 5: Solve for x
    x = 13,480,536,710.55/131,122.24
  6. Step 6: Final answer
    x = 102,808.93

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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.