Finding the Fourth Proportional to 135.21, 202.51 and 110.91
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Solution
The fourth proportional to 135.21, 202.51 and 110.91 is: 166.12
Step by Step Solution
- Step 1: Write the proportion equation
135.21 : 202.51 = 110.91 : x - Step 2: Convert to fraction form
135.21/202.51 = 110.91/x - Step 3: Cross multiply
135.21x = 202.51 × 110.91 - Step 4: Simplify right side
135.21x = 22,461.28 - Step 5: Solve for x
x = 22,461.28/135.21 - Step 6: Final answer
x = 166.12
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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.