Home / 105,879.04-146,181.44-65,635.60

Finding the Fourth Proportional to 105,879.04, 146,181.44 and 65,635.60

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Solution

The fourth proportional to 105,879.04, 146,181.44 and 65,635.60 is: 90,619.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,879.04 : 146,181.44 = 65,635.60 : x
  2. Step 2: Convert to fraction form
    105,879.04/146,181.44 = 65,635.60/x
  3. Step 3: Cross multiply
    105,879.04x = 146,181.44 × 65,635.60
  4. Step 4: Simplify right side
    105,879.04x = 9,594,706,523.26
  5. Step 5: Solve for x
    x = 9,594,706,523.26/105,879.04
  6. Step 6: Final answer
    x = 90,619.51

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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.