Finding the Fourth Proportional to 133.01, 199.11 and 87.26
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Solution
The fourth proportional to 133.01, 199.11 and 87.26 is: 130.62
Step by Step Solution
- Step 1: Write the proportion equation
133.01 : 199.11 = 87.26 : x - Step 2: Convert to fraction form
133.01/199.11 = 87.26/x - Step 3: Cross multiply
133.01x = 199.11 × 87.26 - Step 4: Simplify right side
133.01x = 17,374.34 - Step 5: Solve for x
x = 17,374.34/133.01 - Step 6: Final answer
x = 130.62
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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.