Finding the Fourth Proportional to 129,926.90, 194,890.83 and 39,968.99
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Solution
The fourth proportional to 129,926.90, 194,890.83 and 39,968.99 is: 59,953.63
Step by Step Solution
- Step 1: Write the proportion equation
129,926.90 : 194,890.83 = 39,968.99 : x - Step 2: Convert to fraction form
129,926.90/194,890.83 = 39,968.99/x - Step 3: Cross multiply
129,926.90x = 194,890.83 × 39,968.99 - Step 4: Simplify right side
129,926.90x = 7,789,589,635.36 - Step 5: Solve for x
x = 7,789,589,635.36/129,926.90 - Step 6: Final answer
x = 59,953.63
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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.