Finding the Fourth Proportional to 121,261.36, 167,338.36 and 67,550.80
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Solution
The fourth proportional to 121,261.36, 167,338.36 and 67,550.80 is: 93,218.81
Step by Step Solution
- Step 1: Write the proportion equation
121,261.36 : 167,338.36 = 67,550.80 : x - Step 2: Convert to fraction form
121,261.36/167,338.36 = 67,550.80/x - Step 3: Cross multiply
121,261.36x = 167,338.36 × 67,550.80 - Step 4: Simplify right side
121,261.36x = 11,303,840,088.69 - Step 5: Solve for x
x = 11,303,840,088.69/121,261.36 - Step 6: Final answer
x = 93,218.81
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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.