Finding the Fourth Proportional to 97.93, 135.19 and 75.75
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Solution
The fourth proportional to 97.93, 135.19 and 75.75 is: 104.57
Step by Step Solution
- Step 1: Write the proportion equation
97.93 : 135.19 = 75.75 : x - Step 2: Convert to fraction form
97.93/135.19 = 75.75/x - Step 3: Cross multiply
97.93x = 135.19 × 75.75 - Step 4: Simplify right side
97.93x = 10,240.63 - Step 5: Solve for x
x = 10,240.63/97.93 - Step 6: Final answer
x = 104.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.