Finding the Fourth Proportional to 133.26, 183.93 and 84.18
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Solution
The fourth proportional to 133.26, 183.93 and 84.18 is: 116.19
Step by Step Solution
- Step 1: Write the proportion equation
133.26 : 183.93 = 84.18 : x - Step 2: Convert to fraction form
133.26/183.93 = 84.18/x - Step 3: Cross multiply
133.26x = 183.93 × 84.18 - Step 4: Simplify right side
133.26x = 15,483.23 - Step 5: Solve for x
x = 15,483.23/133.26 - Step 6: Final answer
x = 116.19
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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.