Finding the Fourth Proportional to 129,135.13, 193,697.39 and 44,914.37
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Solution
The fourth proportional to 129,135.13, 193,697.39 and 44,914.37 is: 67,369.70
Step by Step Solution
- Step 1: Write the proportion equation
129,135.13 : 193,697.39 = 44,914.37 : x - Step 2: Convert to fraction form
129,135.13/193,697.39 = 44,914.37/x - Step 3: Cross multiply
129,135.13x = 193,697.39 × 44,914.37 - Step 4: Simplify right side
129,135.13x = 8,699,795,386.29 - Step 5: Solve for x
x = 8,699,795,386.29/129,135.13 - Step 6: Final answer
x = 67,369.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.