Home / 120,561.26-166,368.38-66,845.75

Finding the Fourth Proportional to 120,561.26, 166,368.38 and 66,845.75

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Solution

The fourth proportional to 120,561.26, 166,368.38 and 66,845.75 is: 92,243.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,561.26 : 166,368.38 = 66,845.75 : x
  2. Step 2: Convert to fraction form
    120,561.26/166,368.38 = 66,845.75/x
  3. Step 3: Cross multiply
    120,561.26x = 166,368.38 × 66,845.75
  4. Step 4: Simplify right side
    120,561.26x = 11,121,017,971.31
  5. Step 5: Solve for x
    x = 11,121,017,971.31/120,561.26
  6. Step 6: Final answer
    x = 92,243.71

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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.