Finding the Fourth Proportional to 131,656.97, 181,608.68 and 80,692.58
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Solution
The fourth proportional to 131,656.97, 181,608.68 and 80,692.58 is: 111,307.99
Step by Step Solution
- Step 1: Write the proportion equation
131,656.97 : 181,608.68 = 80,692.58 : x - Step 2: Convert to fraction form
131,656.97/181,608.68 = 80,692.58/x - Step 3: Cross multiply
131,656.97x = 181,608.68 × 80,692.58 - Step 4: Simplify right side
131,656.97x = 14,654,471,628.09 - Step 5: Solve for x
x = 14,654,471,628.09/131,656.97 - Step 6: Final answer
x = 111,307.99
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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.