Finding the Fourth Proportional to 141.63, 195.18 and 129.99
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Solution
The fourth proportional to 141.63, 195.18 and 129.99 is: 179.14
Step by Step Solution
- Step 1: Write the proportion equation
141.63 : 195.18 = 129.99 : x - Step 2: Convert to fraction form
141.63/195.18 = 129.99/x - Step 3: Cross multiply
141.63x = 195.18 × 129.99 - Step 4: Simplify right side
141.63x = 25,371.45 - Step 5: Solve for x
x = 25,371.45/141.63 - Step 6: Final answer
x = 179.14
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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.