Finding the Fourth Proportional to 167,676.26, 231,311.93 and 99,645.07
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Solution
The fourth proportional to 167,676.26, 231,311.93 and 99,645.07 is: 137,461.88
Step by Step Solution
- Step 1: Write the proportion equation
167,676.26 : 231,311.93 = 99,645.07 : x - Step 2: Convert to fraction form
167,676.26/231,311.93 = 99,645.07/x - Step 3: Cross multiply
167,676.26x = 231,311.93 × 99,645.07 - Step 4: Simplify right side
167,676.26x = 23,049,094,069.99 - Step 5: Solve for x
x = 23,049,094,069.99/167,676.26 - Step 6: Final answer
x = 137,461.88
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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.