Finding the Fourth Proportional to 163,642.13, 225,824.72 and 92,020.62
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Solution
The fourth proportional to 163,642.13, 225,824.72 and 92,020.62 is: 126,987.66
Step by Step Solution
- Step 1: Write the proportion equation
163,642.13 : 225,824.72 = 92,020.62 : x - Step 2: Convert to fraction form
163,642.13/225,824.72 = 92,020.62/x - Step 3: Cross multiply
163,642.13x = 225,824.72 × 92,020.62 - Step 4: Simplify right side
163,642.13x = 20,780,530,745.73 - Step 5: Solve for x
x = 20,780,530,745.73/163,642.13 - Step 6: Final answer
x = 126,987.66
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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.