Finding the Fourth Proportional to 129,389.40, 194,082.35 and 33,326.07
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Solution
The fourth proportional to 129,389.40, 194,082.35 and 33,326.07 is: 49,988.65
Step by Step Solution
- Step 1: Write the proportion equation
129,389.40 : 194,082.35 = 33,326.07 : x - Step 2: Convert to fraction form
129,389.40/194,082.35 = 33,326.07/x - Step 3: Cross multiply
129,389.40x = 194,082.35 × 33,326.07 - Step 4: Simplify right side
129,389.40x = 6,468,001,815.23 - Step 5: Solve for x
x = 6,468,001,815.23/129,389.40 - Step 6: Final answer
x = 49,988.65
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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.