Home / 120,437.62-166,205.09-66,723.37

Finding the Fourth Proportional to 120,437.62, 166,205.09 and 66,723.37

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Solution

The fourth proportional to 120,437.62, 166,205.09 and 66,723.37 is: 92,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,437.62 : 166,205.09 = 66,723.37 : x
  2. Step 2: Convert to fraction form
    120,437.62/166,205.09 = 66,723.37/x
  3. Step 3: Cross multiply
    120,437.62x = 166,205.09 × 66,723.37
  4. Step 4: Simplify right side
    120,437.62x = 11,089,763,467.25
  5. Step 5: Solve for x
    x = 11,089,763,467.25/120,437.62
  6. Step 6: Final answer
    x = 92,078.90

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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.