Finding the Fourth Proportional to 167,515.09, 231,173.07 and 91,035.70
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Solution
The fourth proportional to 167,515.09, 231,173.07 and 91,035.70 is: 125,630.49
Step by Step Solution
- Step 1: Write the proportion equation
167,515.09 : 231,173.07 = 91,035.70 : x - Step 2: Convert to fraction form
167,515.09/231,173.07 = 91,035.70/x - Step 3: Cross multiply
167,515.09x = 231,173.07 × 91,035.70 - Step 4: Simplify right side
167,515.09x = 21,045,002,248.60 - Step 5: Solve for x
x = 21,045,002,248.60/167,515.09 - Step 6: Final answer
x = 125,630.49
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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.