Finding the Fourth Proportional to 129,609.75, 194,239.66 and 67,323.99
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Solution
The fourth proportional to 129,609.75, 194,239.66 and 67,323.99 is: 100,895.10
Step by Step Solution
- Step 1: Write the proportion equation
129,609.75 : 194,239.66 = 67,323.99 : x - Step 2: Convert to fraction form
129,609.75/194,239.66 = 67,323.99/x - Step 3: Cross multiply
129,609.75x = 194,239.66 × 67,323.99 - Step 4: Simplify right side
129,609.75x = 13,076,988,927.44 - Step 5: Solve for x
x = 13,076,988,927.44/129,609.75 - Step 6: Final answer
x = 100,895.10
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.