Finding the Fourth Proportional to 133.01, 183.53 and 76.99
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Solution
The fourth proportional to 133.01, 183.53 and 76.99 is: 106.22
Step by Step Solution
- Step 1: Write the proportion equation
133.01 : 183.53 = 76.99 : x - Step 2: Convert to fraction form
133.01/183.53 = 76.99/x - Step 3: Cross multiply
133.01x = 183.53 × 76.99 - Step 4: Simplify right side
133.01x = 14,129.13 - Step 5: Solve for x
x = 14,129.13/133.01 - Step 6: Final answer
x = 106.22
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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.