Finding the Fourth Proportional to 163,730.88, 225,946.26 and 91,133.28
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Solution
The fourth proportional to 163,730.88, 225,946.26 and 91,133.28 is: 125,762.62
Step by Step Solution
- Step 1: Write the proportion equation
163,730.88 : 225,946.26 = 91,133.28 : x - Step 2: Convert to fraction form
163,730.88/225,946.26 = 91,133.28/x - Step 3: Cross multiply
163,730.88x = 225,946.26 × 91,133.28 - Step 4: Simplify right side
163,730.88x = 20,591,223,777.53 - Step 5: Solve for x
x = 20,591,223,777.53/163,730.88 - Step 6: Final answer
x = 125,762.62
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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.