Finding the Fourth Proportional to 129,564.48, 194,379.36 and 40,814.40
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Solution
The fourth proportional to 129,564.48, 194,379.36 and 40,814.40 is: 61,231.88
Step by Step Solution
- Step 1: Write the proportion equation
129,564.48 : 194,379.36 = 40,814.40 : x - Step 2: Convert to fraction form
129,564.48/194,379.36 = 40,814.40/x - Step 3: Cross multiply
129,564.48x = 194,379.36 × 40,814.40 - Step 4: Simplify right side
129,564.48x = 7,933,476,950.78 - Step 5: Solve for x
x = 7,933,476,950.78/129,564.48 - Step 6: Final answer
x = 61,231.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.