Finding the Fourth Proportional to 131,690.93, 181,701.87 and 80,006.99
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Solution
The fourth proportional to 131,690.93, 181,701.87 and 80,006.99 is: 110,390.44
Step by Step Solution
- Step 1: Write the proportion equation
131,690.93 : 181,701.87 = 80,006.99 : x - Step 2: Convert to fraction form
131,690.93/181,701.87 = 80,006.99/x - Step 3: Cross multiply
131,690.93x = 181,701.87 × 80,006.99 - Step 4: Simplify right side
131,690.93x = 14,537,419,509.61 - Step 5: Solve for x
x = 14,537,419,509.61/131,690.93 - Step 6: Final answer
x = 110,390.44
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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.