Finding the Fourth Proportional to 121,378.68, 181,950.39 and 46,441.08
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Solution
The fourth proportional to 121,378.68, 181,950.39 and 46,441.08 is: 69,616.61
Step by Step Solution
- Step 1: Write the proportion equation
121,378.68 : 181,950.39 = 46,441.08 : x - Step 2: Convert to fraction form
121,378.68/181,950.39 = 46,441.08/x - Step 3: Cross multiply
121,378.68x = 181,950.39 × 46,441.08 - Step 4: Simplify right side
121,378.68x = 8,449,972,618.02 - Step 5: Solve for x
x = 8,449,972,618.02/121,378.68 - Step 6: Final answer
x = 69,616.61
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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.