Finding the Fourth Proportional to 129.68, 194.36 and 102.52
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Solution
The fourth proportional to 129.68, 194.36 and 102.52 is: 153.65
Step by Step Solution
- Step 1: Write the proportion equation
129.68 : 194.36 = 102.52 : x - Step 2: Convert to fraction form
129.68/194.36 = 102.52/x - Step 3: Cross multiply
129.68x = 194.36 × 102.52 - Step 4: Simplify right side
129.68x = 19,925.79 - Step 5: Solve for x
x = 19,925.79/129.68 - Step 6: Final answer
x = 153.65
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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.