Finding the Fourth Proportional to 121,278.06, 181,936.53 and 51,167.70
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Solution
The fourth proportional to 121,278.06, 181,936.53 and 51,167.70 is: 76,759.75
Step by Step Solution
- Step 1: Write the proportion equation
121,278.06 : 181,936.53 = 51,167.70 : x - Step 2: Convert to fraction form
121,278.06/181,936.53 = 51,167.70/x - Step 3: Cross multiply
121,278.06x = 181,936.53 × 51,167.70 - Step 4: Simplify right side
121,278.06x = 9,309,273,786.08 - Step 5: Solve for x
x = 9,309,273,786.08/121,278.06 - Step 6: Final answer
x = 76,759.75
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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.