Finding the Fourth Proportional to 133.11, 183.69 and 84.06
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Solution
The fourth proportional to 133.11, 183.69 and 84.06 is: 116.00
Step by Step Solution
- Step 1: Write the proportion equation
133.11 : 183.69 = 84.06 : x - Step 2: Convert to fraction form
133.11/183.69 = 84.06/x - Step 3: Cross multiply
133.11x = 183.69 × 84.06 - Step 4: Simplify right side
133.11x = 15,440.98 - Step 5: Solve for x
x = 15,440.98/133.11 - Step 6: Final answer
x = 116.00
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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.