Finding the Fourth Proportional to 133.68, 184.44 and 84.58
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Solution
The fourth proportional to 133.68, 184.44 and 84.58 is: 116.70
Step by Step Solution
- Step 1: Write the proportion equation
133.68 : 184.44 = 84.58 : x - Step 2: Convert to fraction form
133.68/184.44 = 84.58/x - Step 3: Cross multiply
133.68x = 184.44 × 84.58 - Step 4: Simplify right side
133.68x = 15,599.94 - Step 5: Solve for x
x = 15,599.94/133.68 - Step 6: Final answer
x = 116.70
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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.