Finding the Fourth Proportional to 181,431.99, 272,054.70 and 81,506.49
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Solution
The fourth proportional to 181,431.99, 272,054.70 and 81,506.49 is: 122,217.83
Step by Step Solution
- Step 1: Write the proportion equation
181,431.99 : 272,054.70 = 81,506.49 : x - Step 2: Convert to fraction form
181,431.99/272,054.70 = 81,506.49/x - Step 3: Cross multiply
181,431.99x = 272,054.70 × 81,506.49 - Step 4: Simplify right side
181,431.99x = 22,174,223,685.00 - Step 5: Solve for x
x = 22,174,223,685.00/181,431.99 - Step 6: Final answer
x = 122,217.83
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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.