Finding the Fourth Proportional to 154,274.52, 212,893.02 and 87,207.96
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Solution
The fourth proportional to 154,274.52, 212,893.02 and 87,207.96 is: 120,343.70
Step by Step Solution
- Step 1: Write the proportion equation
154,274.52 : 212,893.02 = 87,207.96 : x - Step 2: Convert to fraction form
154,274.52/212,893.02 = 87,207.96/x - Step 3: Cross multiply
154,274.52x = 212,893.02 × 87,207.96 - Step 4: Simplify right side
154,274.52x = 18,565,965,972.44 - Step 5: Solve for x
x = 18,565,965,972.44/154,274.52 - Step 6: Final answer
x = 120,343.70
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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.