Finding the Fourth Proportional to 163,309.71, 225,361.62 and 91,692.75
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Solution
The fourth proportional to 163,309.71, 225,361.62 and 91,692.75 is: 126,532.75
Step by Step Solution
- Step 1: Write the proportion equation
163,309.71 : 225,361.62 = 91,692.75 : x - Step 2: Convert to fraction form
163,309.71/225,361.62 = 91,692.75/x - Step 3: Cross multiply
163,309.71x = 225,361.62 × 91,692.75 - Step 4: Simplify right side
163,309.71x = 20,664,026,682.26 - Step 5: Solve for x
x = 20,664,026,682.26/163,309.71 - Step 6: Final answer
x = 126,532.75
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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.