Finding the Fourth Proportional to 141,031.84, 194,623.96 and 77,369.62
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Solution
The fourth proportional to 141,031.84, 194,623.96 and 77,369.62 is: 106,770.09
Step by Step Solution
- Step 1: Write the proportion equation
141,031.84 : 194,623.96 = 77,369.62 : x - Step 2: Convert to fraction form
141,031.84/194,623.96 = 77,369.62/x - Step 3: Cross multiply
141,031.84x = 194,623.96 × 77,369.62 - Step 4: Simplify right side
141,031.84x = 15,057,981,828.10 - Step 5: Solve for x
x = 15,057,981,828.10/141,031.84 - Step 6: Final answer
x = 106,770.09
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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.