Finding the Fourth Proportional to 132,161.64, 182,378.18 and 71,730.99
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Solution
The fourth proportional to 132,161.64, 182,378.18 and 71,730.99 is: 98,986.11
Step by Step Solution
- Step 1: Write the proportion equation
132,161.64 : 182,378.18 = 71,730.99 : x - Step 2: Convert to fraction form
132,161.64/182,378.18 = 71,730.99/x - Step 3: Cross multiply
132,161.64x = 182,378.18 × 71,730.99 - Step 4: Simplify right side
132,161.64x = 13,082,167,521.01 - Step 5: Solve for x
x = 13,082,167,521.01/132,161.64 - Step 6: Final answer
x = 98,986.11
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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.