Home / 166,661.22-229,991.74-90,181.66

Finding the Fourth Proportional to 166,661.22, 229,991.74 and 90,181.66

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Solution

The fourth proportional to 166,661.22, 229,991.74 and 90,181.66 is: 124,450.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,661.22 : 229,991.74 = 90,181.66 : x
  2. Step 2: Convert to fraction form
    166,661.22/229,991.74 = 90,181.66/x
  3. Step 3: Cross multiply
    166,661.22x = 229,991.74 × 90,181.66
  4. Step 4: Simplify right side
    166,661.22x = 20,741,036,899.49
  5. Step 5: Solve for x
    x = 20,741,036,899.49/166,661.22
  6. Step 6: Final answer
    x = 124,450.29

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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.