Finding the Fourth Proportional to 129,756.18, 194,661.18 and 54,876.96
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Solution
The fourth proportional to 129,756.18, 194,661.18 and 54,876.96 is: 82,326.82
Step by Step Solution
- Step 1: Write the proportion equation
129,756.18 : 194,661.18 = 54,876.96 : x - Step 2: Convert to fraction form
129,756.18/194,661.18 = 54,876.96/x - Step 3: Cross multiply
129,756.18x = 194,661.18 × 54,876.96 - Step 4: Simplify right side
129,756.18x = 10,682,413,788.41 - Step 5: Solve for x
x = 10,682,413,788.41/129,756.18 - Step 6: Final answer
x = 82,326.82
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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.