Home / 120,661.38-166,520.58-69,676.26

Finding the Fourth Proportional to 120,661.38, 166,520.58 and 69,676.26

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Solution

The fourth proportional to 120,661.38, 166,520.58 and 69,676.26 is: 96,157.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,661.38 : 166,520.58 = 69,676.26 : x
  2. Step 2: Convert to fraction form
    120,661.38/166,520.58 = 69,676.26/x
  3. Step 3: Cross multiply
    120,661.38x = 166,520.58 × 69,676.26
  4. Step 4: Simplify right side
    120,661.38x = 11,602,531,227.43
  5. Step 5: Solve for x
    x = 11,602,531,227.43/120,661.38
  6. Step 6: Final answer
    x = 96,157.79

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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.