Home / 120,576.36-166,394.43-66,861.51

Finding the Fourth Proportional to 120,576.36, 166,394.43 and 66,861.51

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Solution

The fourth proportional to 120,576.36, 166,394.43 and 66,861.51 is: 92,268.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,576.36 : 166,394.43 = 66,861.51 : x
  2. Step 2: Convert to fraction form
    120,576.36/166,394.43 = 66,861.51/x
  3. Step 3: Cross multiply
    120,576.36x = 166,394.43 × 66,861.51
  4. Step 4: Simplify right side
    120,576.36x = 11,125,382,845.39
  5. Step 5: Solve for x
    x = 11,125,382,845.39/120,576.36
  6. Step 6: Final answer
    x = 92,268.36

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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.