Finding the Fourth Proportional to 125.23, 186.70 and 122.02
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Solution
The fourth proportional to 125.23, 186.70 and 122.02 is: 181.91
Step by Step Solution
- Step 1: Write the proportion equation
125.23 : 186.70 = 122.02 : x - Step 2: Convert to fraction form
125.23/186.70 = 122.02/x - Step 3: Cross multiply
125.23x = 186.70 × 122.02 - Step 4: Simplify right side
125.23x = 22,781.13 - Step 5: Solve for x
x = 22,781.13/125.23 - Step 6: Final answer
x = 181.91
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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.