Finding the Fourth Proportional to 123.81, 185.52 and 62.99
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Solution
The fourth proportional to 123.81, 185.52 and 62.99 is: 94.38
Step by Step Solution
- Step 1: Write the proportion equation
123.81 : 185.52 = 62.99 : x - Step 2: Convert to fraction form
123.81/185.52 = 62.99/x - Step 3: Cross multiply
123.81x = 185.52 × 62.99 - Step 4: Simplify right side
123.81x = 11,684.98 - Step 5: Solve for x
x = 11,684.98/123.81 - Step 6: Final answer
x = 94.38
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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.