Finding the Fourth Proportional to 163,434.36, 225,538.05 and 91,812.84
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Solution
The fourth proportional to 163,434.36, 225,538.05 and 91,812.84 is: 126,700.95
Step by Step Solution
- Step 1: Write the proportion equation
163,434.36 : 225,538.05 = 91,812.84 : x - Step 2: Convert to fraction form
163,434.36/225,538.05 = 91,812.84/x - Step 3: Cross multiply
163,434.36x = 225,538.05 × 91,812.84 - Step 4: Simplify right side
163,434.36x = 20,707,288,898.56 - Step 5: Solve for x
x = 20,707,288,898.56/163,434.36 - Step 6: Final answer
x = 126,700.95
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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.