Finding the Fourth Proportional to 133.43, 184.10 and 91.99
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Solution
The fourth proportional to 133.43, 184.10 and 91.99 is: 126.91
Step by Step Solution
- Step 1: Write the proportion equation
133.43 : 184.10 = 91.99 : x - Step 2: Convert to fraction form
133.43/184.10 = 91.99/x - Step 3: Cross multiply
133.43x = 184.10 × 91.99 - Step 4: Simplify right side
133.43x = 16,933.98 - Step 5: Solve for x
x = 16,933.98/133.43 - Step 6: Final answer
x = 126.91
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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.