Finding the Fourth Proportional to 133.24, 183.84 and 75.02
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Solution
The fourth proportional to 133.24, 183.84 and 75.02 is: 103.51
Step by Step Solution
- Step 1: Write the proportion equation
133.24 : 183.84 = 75.02 : x - Step 2: Convert to fraction form
133.24/183.84 = 75.02/x - Step 3: Cross multiply
133.24x = 183.84 × 75.02 - Step 4: Simplify right side
133.24x = 13,791.68 - Step 5: Solve for x
x = 13,791.68/133.24 - Step 6: Final answer
x = 103.51
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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.