Finding the Fourth Proportional to 133.93, 200.74 and 73.09
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Solution
The fourth proportional to 133.93, 200.74 and 73.09 is: 109.55
Step by Step Solution
- Step 1: Write the proportion equation
133.93 : 200.74 = 73.09 : x - Step 2: Convert to fraction form
133.93/200.74 = 73.09/x - Step 3: Cross multiply
133.93x = 200.74 × 73.09 - Step 4: Simplify right side
133.93x = 14,672.09 - Step 5: Solve for x
x = 14,672.09/133.93 - Step 6: Final answer
x = 109.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.