Finding the Fourth Proportional to 163,142.82, 225,140.58 and 91,528.02
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Solution
The fourth proportional to 163,142.82, 225,140.58 and 91,528.02 is: 126,310.62
Step by Step Solution
- Step 1: Write the proportion equation
163,142.82 : 225,140.58 = 91,528.02 : x - Step 2: Convert to fraction form
163,142.82/225,140.58 = 91,528.02/x - Step 3: Cross multiply
163,142.82x = 225,140.58 × 91,528.02 - Step 4: Simplify right side
163,142.82x = 20,606,671,509.05 - Step 5: Solve for x
x = 20,606,671,509.05/163,142.82 - Step 6: Final answer
x = 126,310.62
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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.