Finding the Fourth Proportional to 163,586.44, 225,772.14 and 91,970.92
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Solution
The fourth proportional to 163,586.44, 225,772.14 and 91,970.92 is: 126,932.72
Step by Step Solution
- Step 1: Write the proportion equation
163,586.44 : 225,772.14 = 91,970.92 : x - Step 2: Convert to fraction form
163,586.44/225,772.14 = 91,970.92/x - Step 3: Cross multiply
163,586.44x = 225,772.14 × 91,970.92 - Step 4: Simplify right side
163,586.44x = 20,764,471,426.17 - Step 5: Solve for x
x = 20,764,471,426.17/163,586.44 - Step 6: Final answer
x = 126,932.72
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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.