Home / 120,249.40-166,644.79-118,558.12

Finding the Fourth Proportional to 120,249.40, 166,644.79 and 118,558.12

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Solution

The fourth proportional to 120,249.40, 166,644.79 and 118,558.12 is: 164,300.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,249.40 : 166,644.79 = 118,558.12 : x
  2. Step 2: Convert to fraction form
    120,249.40/166,644.79 = 118,558.12/x
  3. Step 3: Cross multiply
    120,249.40x = 166,644.79 × 118,558.12
  4. Step 4: Simplify right side
    120,249.40x = 19,757,093,010.19
  5. Step 5: Solve for x
    x = 19,757,093,010.19/120,249.40
  6. Step 6: Final answer
    x = 164,300.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.