Home / 105,976.53-158,965.30-27,090.75

Finding the Fourth Proportional to 105,976.53, 158,965.30 and 27,090.75

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Solution

The fourth proportional to 105,976.53, 158,965.30 and 27,090.75 is: 40,636.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,976.53 : 158,965.30 = 27,090.75 : x
  2. Step 2: Convert to fraction form
    105,976.53/158,965.30 = 27,090.75/x
  3. Step 3: Cross multiply
    105,976.53x = 158,965.30 × 27,090.75
  4. Step 4: Simplify right side
    105,976.53x = 4,306,489,200.98
  5. Step 5: Solve for x
    x = 4,306,489,200.98/105,976.53
  6. Step 6: Final answer
    x = 40,636.25

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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.