Finding the Fourth Proportional to 189,644.99, 261,687.80 and 104,756.99
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Solution
The fourth proportional to 189,644.99, 261,687.80 and 104,756.99 is: 144,552.33
Step by Step Solution
- Step 1: Write the proportion equation
189,644.99 : 261,687.80 = 104,756.99 : x - Step 2: Convert to fraction form
189,644.99/261,687.80 = 104,756.99/x - Step 3: Cross multiply
189,644.99x = 261,687.80 × 104,756.99 - Step 4: Simplify right side
189,644.99x = 27,413,625,723.94 - Step 5: Solve for x
x = 27,413,625,723.94/189,644.99 - Step 6: Final answer
x = 144,552.33
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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.