Finding the Fourth Proportional to 163,356.74, 225,415.50 and 91,736.18
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Solution
The fourth proportional to 163,356.74, 225,415.50 and 91,736.18 is: 126,586.49
Step by Step Solution
- Step 1: Write the proportion equation
163,356.74 : 225,415.50 = 91,736.18 : x - Step 2: Convert to fraction form
163,356.74/225,415.50 = 91,736.18/x - Step 3: Cross multiply
163,356.74x = 225,415.50 × 91,736.18 - Step 4: Simplify right side
163,356.74x = 20,678,756,882.79 - Step 5: Solve for x
x = 20,678,756,882.79/163,356.74 - Step 6: Final answer
x = 126,586.49
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1.5x scale
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.