Finding the Fourth Proportional to 181,561.08, 250,378.38 and 121,134.18
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Solution
The fourth proportional to 181,561.08, 250,378.38 and 121,134.18 is: 167,047.80
Step by Step Solution
- Step 1: Write the proportion equation
181,561.08 : 250,378.38 = 121,134.18 : x - Step 2: Convert to fraction form
181,561.08/250,378.38 = 121,134.18/x - Step 3: Cross multiply
181,561.08x = 250,378.38 × 121,134.18 - Step 4: Simplify right side
181,561.08x = 30,329,379,751.03 - Step 5: Solve for x
x = 30,329,379,751.03/181,561.08 - Step 6: Final answer
x = 167,047.80
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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.