Finding the Fourth Proportional to 132,562.99, 182,876.43 and 78,817.42
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Solution
The fourth proportional to 132,562.99, 182,876.43 and 78,817.42 is: 108,732.07
Step by Step Solution
- Step 1: Write the proportion equation
132,562.99 : 182,876.43 = 78,817.42 : x - Step 2: Convert to fraction form
132,562.99/182,876.43 = 78,817.42/x - Step 3: Cross multiply
132,562.99x = 182,876.43 × 78,817.42 - Step 4: Simplify right side
132,562.99x = 14,413,848,391.41 - Step 5: Solve for x
x = 14,413,848,391.41/132,562.99 - Step 6: Final answer
x = 108,732.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.