Finding the Fourth Proportional to 189,853.62, 261,975.09 and 104,959.14
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Solution
The fourth proportional to 189,853.62, 261,975.09 and 104,959.14 is: 144,830.95
Step by Step Solution
- Step 1: Write the proportion equation
189,853.62 : 261,975.09 = 104,959.14 : x - Step 2: Convert to fraction form
189,853.62/261,975.09 = 104,959.14/x - Step 3: Cross multiply
189,853.62x = 261,975.09 × 104,959.14 - Step 4: Simplify right side
189,853.62x = 27,496,680,147.82 - Step 5: Solve for x
x = 27,496,680,147.82/189,853.62 - Step 6: Final answer
x = 144,830.95
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1.5x scale
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.