Finding the Fourth Proportional to 94.93, 130.93 and 74.19
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Solution
The fourth proportional to 94.93, 130.93 and 74.19 is: 102.32
Step by Step Solution
- Step 1: Write the proportion equation
94.93 : 130.93 = 74.19 : x - Step 2: Convert to fraction form
94.93/130.93 = 74.19/x - Step 3: Cross multiply
94.93x = 130.93 × 74.19 - Step 4: Simplify right side
94.93x = 9,713.70 - Step 5: Solve for x
x = 9,713.70/94.93 - Step 6: Final answer
x = 102.32
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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.