Finding the Fourth Proportional to 163,424.64, 225,526.88 and 91,807.68
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Solution
The fourth proportional to 163,424.64, 225,526.88 and 91,807.68 is: 126,695.09
Step by Step Solution
- Step 1: Write the proportion equation
163,424.64 : 225,526.88 = 91,807.68 : x - Step 2: Convert to fraction form
163,424.64/225,526.88 = 91,807.68/x - Step 3: Cross multiply
163,424.64x = 225,526.88 × 91,807.68 - Step 4: Simplify right side
163,424.64x = 20,705,099,630.44 - Step 5: Solve for x
x = 20,705,099,630.44/163,424.64 - Step 6: Final answer
x = 126,695.09
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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.