Finding the Fourth Proportional to 163,504.80, 225,622.68 and 91,879.20
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Solution
The fourth proportional to 163,504.80, 225,622.68 and 91,879.20 is: 126,785.46
Step by Step Solution
- Step 1: Write the proportion equation
163,504.80 : 225,622.68 = 91,879.20 : x - Step 2: Convert to fraction form
163,504.80/225,622.68 = 91,879.20/x - Step 3: Cross multiply
163,504.80x = 225,622.68 × 91,879.20 - Step 4: Simplify right side
163,504.80x = 20,730,031,340.26 - Step 5: Solve for x
x = 20,730,031,340.26/163,504.80 - Step 6: Final answer
x = 126,785.46
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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.