Finding the Fourth Proportional to 161,687.62, 223,133.97 and 92,789.67
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Solution
The fourth proportional to 161,687.62, 223,133.97 and 92,789.67 is: 128,052.65
Step by Step Solution
- Step 1: Write the proportion equation
161,687.62 : 223,133.97 = 92,789.67 : x - Step 2: Convert to fraction form
161,687.62/223,133.97 = 92,789.67/x - Step 3: Cross multiply
161,687.62x = 223,133.97 × 92,789.67 - Step 4: Simplify right side
161,687.62x = 20,704,527,442.09 - Step 5: Solve for x
x = 20,704,527,442.09/161,687.62 - Step 6: Final answer
x = 128,052.65
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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.