Finding the Fourth Proportional to 189,562.48, 261,672.58 and 129,194.14
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Solution
The fourth proportional to 189,562.48, 261,672.58 and 129,194.14 is: 178,339.95
Step by Step Solution
- Step 1: Write the proportion equation
189,562.48 : 261,672.58 = 129,194.14 : x - Step 2: Convert to fraction form
189,562.48/261,672.58 = 129,194.14/x - Step 3: Cross multiply
189,562.48x = 261,672.58 × 129,194.14 - Step 4: Simplify right side
189,562.48x = 33,806,563,205.91 - Step 5: Solve for x
x = 33,806,563,205.91/189,562.48 - Step 6: Final answer
x = 178,339.95
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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.