Finding the Fourth Proportional to 121,278.44, 181,581.78 and 61,986.44
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Solution
The fourth proportional to 121,278.44, 181,581.78 and 61,986.44 is: 92,807.99
Step by Step Solution
- Step 1: Write the proportion equation
121,278.44 : 181,581.78 = 61,986.44 : x - Step 2: Convert to fraction form
121,278.44/181,581.78 = 61,986.44/x - Step 3: Cross multiply
121,278.44x = 181,581.78 × 61,986.44 - Step 4: Simplify right side
121,278.44x = 11,255,608,111.06 - Step 5: Solve for x
x = 11,255,608,111.06/121,278.44 - Step 6: Final answer
x = 92,807.99
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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.