Finding the Fourth Proportional to 136,629.80, 188,563.62 and 80,088.68
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Solution
The fourth proportional to 136,629.80, 188,563.62 and 80,088.68 is: 110,530.88
Step by Step Solution
- Step 1: Write the proportion equation
136,629.80 : 188,563.62 = 80,088.68 : x - Step 2: Convert to fraction form
136,629.80/188,563.62 = 80,088.68/x - Step 3: Cross multiply
136,629.80x = 188,563.62 × 80,088.68 - Step 4: Simplify right side
136,629.80x = 15,101,811,421.82 - Step 5: Solve for x
x = 15,101,811,421.82/136,629.80 - Step 6: Final answer
x = 110,530.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.