Finding the Fourth Proportional to 133.60, 183.08 and 129.96
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Solution
The fourth proportional to 133.60, 183.08 and 129.96 is: 178.09
Step by Step Solution
- Step 1: Write the proportion equation
133.60 : 183.08 = 129.96 : x - Step 2: Convert to fraction form
133.60/183.08 = 129.96/x - Step 3: Cross multiply
133.60x = 183.08 × 129.96 - Step 4: Simplify right side
133.60x = 23,793.08 - Step 5: Solve for x
x = 23,793.08/133.60 - Step 6: Final answer
x = 178.09
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.