Finding the Fourth Proportional to 163,341.15, 225,395.10 and 91,704.75
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Solution
The fourth proportional to 163,341.15, 225,395.10 and 91,704.75 is: 126,543.75
Step by Step Solution
- Step 1: Write the proportion equation
163,341.15 : 225,395.10 = 91,704.75 : x - Step 2: Convert to fraction form
163,341.15/225,395.10 = 91,704.75/x - Step 3: Cross multiply
163,341.15x = 225,395.10 × 91,704.75 - Step 4: Simplify right side
163,341.15x = 20,669,801,296.73 - Step 5: Solve for x
x = 20,669,801,296.73/163,341.15 - Step 6: Final answer
x = 126,543.75
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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.