Finding the Fourth Proportional to 154,235.84, 212,843.97 and 86,252.04
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Solution
The fourth proportional to 154,235.84, 212,843.97 and 86,252.04 is: 119,026.99
Step by Step Solution
- Step 1: Write the proportion equation
154,235.84 : 212,843.97 = 86,252.04 : x - Step 2: Convert to fraction form
154,235.84/212,843.97 = 86,252.04/x - Step 3: Cross multiply
154,235.84x = 212,843.97 × 86,252.04 - Step 4: Simplify right side
154,235.84x = 18,358,226,614.20 - Step 5: Solve for x
x = 18,358,226,614.20/154,235.84 - Step 6: Final answer
x = 119,026.99
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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.