Finding the Fourth Proportional to 129.36, 193.10 and 125.08
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Solution
The fourth proportional to 129.36, 193.10 and 125.08 is: 186.71
Step by Step Solution
- Step 1: Write the proportion equation
129.36 : 193.10 = 125.08 : x - Step 2: Convert to fraction form
129.36/193.10 = 125.08/x - Step 3: Cross multiply
129.36x = 193.10 × 125.08 - Step 4: Simplify right side
129.36x = 24,152.95 - Step 5: Solve for x
x = 24,152.95/129.36 - Step 6: Final answer
x = 186.71
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.