Finding the Fourth Proportional to 125,245.44, 172,853.19 and 71,538.19
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Solution
The fourth proportional to 125,245.44, 172,853.19 and 71,538.19 is: 98,730.97
Step by Step Solution
- Step 1: Write the proportion equation
125,245.44 : 172,853.19 = 71,538.19 : x - Step 2: Convert to fraction form
125,245.44/172,853.19 = 71,538.19/x - Step 3: Cross multiply
125,245.44x = 172,853.19 × 71,538.19 - Step 4: Simplify right side
125,245.44x = 12,365,603,916.19 - Step 5: Solve for x
x = 12,365,603,916.19/125,245.44 - Step 6: Final answer
x = 98,730.97
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1.5x scale
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.