Finding the Fourth Proportional to 102,768.96, 141,277.11 and 88,375.80
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Solution
The fourth proportional to 102,768.96, 141,277.11 and 88,375.80 is: 121,490.75
Step by Step Solution
- Step 1: Write the proportion equation
102,768.96 : 141,277.11 = 88,375.80 : x - Step 2: Convert to fraction form
102,768.96/141,277.11 = 88,375.80/x - Step 3: Cross multiply
102,768.96x = 141,277.11 × 88,375.80 - Step 4: Simplify right side
102,768.96x = 12,485,477,617.94 - Step 5: Solve for x
x = 12,485,477,617.94/102,768.96 - Step 6: Final answer
x = 121,490.75
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.