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Finding the Fourth Proportional to 107,900.45, 161,850.67 and 45,571.49

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Solution

The fourth proportional to 107,900.45, 161,850.67 and 45,571.49 is: 68,357.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,900.45 : 161,850.67 = 45,571.49 : x
  2. Step 2: Convert to fraction form
    107,900.45/161,850.67 = 45,571.49/x
  3. Step 3: Cross multiply
    107,900.45x = 161,850.67 × 45,571.49
  4. Step 4: Simplify right side
    107,900.45x = 7,375,775,266.22
  5. Step 5: Solve for x
    x = 7,375,775,266.22/107,900.45
  6. Step 6: Final answer
    x = 68,357.23

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1.5x scale

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.