Finding the Fourth Proportional to 125,625.21, 173,390.14 and 77,268.70
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Solution
The fourth proportional to 125,625.21, 173,390.14 and 77,268.70 is: 106,647.62
Step by Step Solution
- Step 1: Write the proportion equation
125,625.21 : 173,390.14 = 77,268.70 : x - Step 2: Convert to fraction form
125,625.21/173,390.14 = 77,268.70/x - Step 3: Cross multiply
125,625.21x = 173,390.14 × 77,268.70 - Step 4: Simplify right side
125,625.21x = 13,397,630,324.27 - Step 5: Solve for x
x = 13,397,630,324.27/125,625.21 - Step 6: Final answer
x = 106,647.62
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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.