Finding the Fourth Proportional to 163,534.20, 225,671.28 and 91,918.14
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Solution
The fourth proportional to 163,534.20, 225,671.28 and 91,918.14 is: 126,843.71
Step by Step Solution
- Step 1: Write the proportion equation
163,534.20 : 225,671.28 = 91,918.14 : x - Step 2: Convert to fraction form
163,534.20/225,671.28 = 91,918.14/x - Step 3: Cross multiply
163,534.20x = 225,671.28 × 91,918.14 - Step 4: Simplify right side
163,534.20x = 20,743,284,309.02 - Step 5: Solve for x
x = 20,743,284,309.02/163,534.20 - Step 6: Final answer
x = 126,843.71
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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.