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Finding the Fourth Proportional to 120,453.54, 166,223.70 and 66,738.36

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Solution

The fourth proportional to 120,453.54, 166,223.70 and 66,738.36 is: 92,097.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,453.54 : 166,223.70 = 66,738.36 : x
  2. Step 2: Convert to fraction form
    120,453.54/166,223.70 = 66,738.36/x
  3. Step 3: Cross multiply
    120,453.54x = 166,223.70 × 66,738.36
  4. Step 4: Simplify right side
    120,453.54x = 11,093,497,131.13
  5. Step 5: Solve for x
    x = 11,093,497,131.13/120,453.54
  6. Step 6: Final answer
    x = 92,097.73

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1.5x scale

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.