Home / 120,945.85-166,907.26-66,500.32

Finding the Fourth Proportional to 120,945.85, 166,907.26 and 66,500.32

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Solution

The fourth proportional to 120,945.85, 166,907.26 and 66,500.32 is: 91,771.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,945.85 : 166,907.26 = 66,500.32 : x
  2. Step 2: Convert to fraction form
    120,945.85/166,907.26 = 66,500.32/x
  3. Step 3: Cross multiply
    120,945.85x = 166,907.26 × 66,500.32
  4. Step 4: Simplify right side
    120,945.85x = 11,099,385,365.79
  5. Step 5: Solve for x
    x = 11,099,385,365.79/120,945.85
  6. Step 6: Final answer
    x = 91,771.53

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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.