Finding the Fourth Proportional to 163,071.74, 225,052.74 and 91,465.31
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Solution
The fourth proportional to 163,071.74, 225,052.74 and 91,465.31 is: 126,229.83
Step by Step Solution
- Step 1: Write the proportion equation
163,071.74 : 225,052.74 = 91,465.31 : x - Step 2: Convert to fraction form
163,071.74/225,052.74 = 91,465.31/x - Step 3: Cross multiply
163,071.74x = 225,052.74 × 91,465.31 - Step 4: Simplify right side
163,071.74x = 20,584,517,505.19 - Step 5: Solve for x
x = 20,584,517,505.19/163,071.74 - Step 6: Final answer
x = 126,229.83
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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.