Finding the Fourth Proportional to 137,278.08, 188,872.02 and 121,074.84
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Solution
The fourth proportional to 137,278.08, 188,872.02 and 121,074.84 is: 166,579.03
Step by Step Solution
- Step 1: Write the proportion equation
137,278.08 : 188,872.02 = 121,074.84 : x - Step 2: Convert to fraction form
137,278.08/188,872.02 = 121,074.84/x - Step 3: Cross multiply
137,278.08x = 188,872.02 × 121,074.84 - Step 4: Simplify right side
137,278.08x = 22,867,649,601.98 - Step 5: Solve for x
x = 22,867,649,601.98/137,278.08 - Step 6: Final answer
x = 166,579.03
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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.