Finding the Fourth Proportional to 135,891.24, 203,894.45 and 72,694.81
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Solution
The fourth proportional to 135,891.24, 203,894.45 and 72,694.81 is: 109,073.02
Step by Step Solution
- Step 1: Write the proportion equation
135,891.24 : 203,894.45 = 72,694.81 : x - Step 2: Convert to fraction form
135,891.24/203,894.45 = 72,694.81/x - Step 3: Cross multiply
135,891.24x = 203,894.45 × 72,694.81 - Step 4: Simplify right side
135,891.24x = 14,822,068,302.80 - Step 5: Solve for x
x = 14,822,068,302.80/135,891.24 - Step 6: Final answer
x = 109,073.02
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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.