Finding the Fourth Proportional to 140.44, 193.74 and 99
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Solution
The fourth proportional to 140.44, 193.74 and 99 is: 136.57
Step by Step Solution
- Step 1: Write the proportion equation
140.44 : 193.74 = 99 : x - Step 2: Convert to fraction form
140.44/193.74 = 99/x - Step 3: Cross multiply
140.44x = 193.74 × 99 - Step 4: Simplify right side
140.44x = 19,180.26 - Step 5: Solve for x
x = 19,180.26/140.44 - Step 6: Final answer
x = 136.57
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.