Finding the Fourth Proportional to 131,770.99, 181,841.79 and 71,341.08
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Solution
The fourth proportional to 131,770.99, 181,841.79 and 71,341.08 is: 98,449.51
Step by Step Solution
- Step 1: Write the proportion equation
131,770.99 : 181,841.79 = 71,341.08 : x - Step 2: Convert to fraction form
131,770.99/181,841.79 = 71,341.08/x - Step 3: Cross multiply
131,770.99x = 181,841.79 × 71,341.08 - Step 4: Simplify right side
131,770.99x = 12,972,789,687.73 - Step 5: Solve for x
x = 12,972,789,687.73/131,770.99 - Step 6: Final answer
x = 98,449.51
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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.