Finding the Fourth Proportional to 121,735.74, 167,995.86 and 66,546.19
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Solution
The fourth proportional to 121,735.74, 167,995.86 and 66,546.19 is: 91,834.03
Step by Step Solution
- Step 1: Write the proportion equation
121,735.74 : 167,995.86 = 66,546.19 : x - Step 2: Convert to fraction form
121,735.74/167,995.86 = 66,546.19/x - Step 3: Cross multiply
121,735.74x = 167,995.86 × 66,546.19 - Step 4: Simplify right side
121,735.74x = 11,179,484,379.22 - Step 5: Solve for x
x = 11,179,484,379.22/121,735.74 - Step 6: Final answer
x = 91,834.03
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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.