Finding the Fourth Proportional to 135.93, 203.91 and 39.75
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Solution
The fourth proportional to 135.93, 203.91 and 39.75 is: 59.63
Step by Step Solution
- Step 1: Write the proportion equation
135.93 : 203.91 = 39.75 : x - Step 2: Convert to fraction form
135.93/203.91 = 39.75/x - Step 3: Cross multiply
135.93x = 203.91 × 39.75 - Step 4: Simplify right side
135.93x = 8,105.42 - Step 5: Solve for x
x = 8,105.42/135.93 - Step 6: Final answer
x = 59.63
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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.