Finding the Fourth Proportional to 132.65, 183.09 and 80.19
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Solution
The fourth proportional to 132.65, 183.09 and 80.19 is: 110.69
Step by Step Solution
- Step 1: Write the proportion equation
132.65 : 183.09 = 80.19 : x - Step 2: Convert to fraction form
132.65/183.09 = 80.19/x - Step 3: Cross multiply
132.65x = 183.09 × 80.19 - Step 4: Simplify right side
132.65x = 14,681.99 - Step 5: Solve for x
x = 14,681.99/132.65 - Step 6: Final answer
x = 110.69
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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.