Finding the Fourth Proportional to 159,178.49, 219,662.97 and 86,582.84
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Solution
The fourth proportional to 159,178.49, 219,662.97 and 86,582.84 is: 119,482.50
Step by Step Solution
- Step 1: Write the proportion equation
159,178.49 : 219,662.97 = 86,582.84 : x - Step 2: Convert to fraction form
159,178.49/219,662.97 = 86,582.84/x - Step 3: Cross multiply
159,178.49x = 219,662.97 × 86,582.84 - Step 4: Simplify right side
159,178.49x = 19,019,042,687.12 - Step 5: Solve for x
x = 19,019,042,687.12/159,178.49 - Step 6: Final answer
x = 119,482.50
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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.