Finding the Fourth Proportional to 141,939.99, 212,901.62 and 53,186.06
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Solution
The fourth proportional to 141,939.99, 212,901.62 and 53,186.06 is: 79,775.96
Step by Step Solution
- Step 1: Write the proportion equation
141,939.99 : 212,901.62 = 53,186.06 : x - Step 2: Convert to fraction form
141,939.99/212,901.62 = 53,186.06/x - Step 3: Cross multiply
141,939.99x = 212,901.62 × 53,186.06 - Step 4: Simplify right side
141,939.99x = 11,323,398,601.74 - Step 5: Solve for x
x = 11,323,398,601.74/141,939.99 - Step 6: Final answer
x = 79,775.96
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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.