Home / 105,911.28-146,190.24-68,185.44

Finding the Fourth Proportional to 105,911.28, 146,190.24 and 68,185.44

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Solution

The fourth proportional to 105,911.28, 146,190.24 and 68,185.44 is: 94,116.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,911.28 : 146,190.24 = 68,185.44 : x
  2. Step 2: Convert to fraction form
    105,911.28/146,190.24 = 68,185.44/x
  3. Step 3: Cross multiply
    105,911.28x = 146,190.24 × 68,185.44
  4. Step 4: Simplify right side
    105,911.28x = 9,968,045,838.11
  5. Step 5: Solve for x
    x = 9,968,045,838.11/105,911.28
  6. Step 6: Final answer
    x = 94,116.94

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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.