Home / 107,908.02-161,879.31-45,579.06

Finding the Fourth Proportional to 107,908.02, 161,879.31 and 45,579.06

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Solution

The fourth proportional to 107,908.02, 161,879.31 and 45,579.06 is: 68,375.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,908.02 : 161,879.31 = 45,579.06 : x
  2. Step 2: Convert to fraction form
    107,908.02/161,879.31 = 45,579.06/x
  3. Step 3: Cross multiply
    107,908.02x = 161,879.31 × 45,579.06
  4. Step 4: Simplify right side
    107,908.02x = 7,378,306,783.25
  5. Step 5: Solve for x
    x = 7,378,306,783.25/107,908.02
  6. Step 6: Final answer
    x = 68,375.89

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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.