Finding the Fourth Proportional to 167,616.21, 231,311.32 and 91,136.06
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Solution
The fourth proportional to 167,616.21, 231,311.32 and 91,136.06 is: 125,768.27
Step by Step Solution
- Step 1: Write the proportion equation
167,616.21 : 231,311.32 = 91,136.06 : x - Step 2: Convert to fraction form
167,616.21/231,311.32 = 91,136.06/x - Step 3: Cross multiply
167,616.21x = 231,311.32 × 91,136.06 - Step 4: Simplify right side
167,616.21x = 21,080,801,821.22 - Step 5: Solve for x
x = 21,080,801,821.22/167,616.21 - Step 6: Final answer
x = 125,768.27
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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.