Finding the Fourth Proportional to 163,251.21, 225,274.44 and 90,658.20
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Solution
The fourth proportional to 163,251.21, 225,274.44 and 90,658.20 is: 125,101.52
Step by Step Solution
- Step 1: Write the proportion equation
163,251.21 : 225,274.44 = 90,658.20 : x - Step 2: Convert to fraction form
163,251.21/225,274.44 = 90,658.20/x - Step 3: Cross multiply
163,251.21x = 225,274.44 × 90,658.20 - Step 4: Simplify right side
163,251.21x = 20,422,975,236.41 - Step 5: Solve for x
x = 20,422,975,236.41/163,251.21 - Step 6: Final answer
x = 125,101.52
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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.