Finding the Fourth Proportional to 129.22, 193.79 and 48.08
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Solution
The fourth proportional to 129.22, 193.79 and 48.08 is: 72.11
Step by Step Solution
- Step 1: Write the proportion equation
129.22 : 193.79 = 48.08 : x - Step 2: Convert to fraction form
129.22/193.79 = 48.08/x - Step 3: Cross multiply
129.22x = 193.79 × 48.08 - Step 4: Simplify right side
129.22x = 9,317.18 - Step 5: Solve for x
x = 9,317.18/129.22 - Step 6: Final answer
x = 72.11
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.