Finding the Fourth Proportional to 163,636.18, 225,719.94 and 99,863.26
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Solution
The fourth proportional to 163,636.18, 225,719.94 and 99,863.26 is: 137,751.50
Step by Step Solution
- Step 1: Write the proportion equation
163,636.18 : 225,719.94 = 99,863.26 : x - Step 2: Convert to fraction form
163,636.18/225,719.94 = 99,863.26/x - Step 3: Cross multiply
163,636.18x = 225,719.94 × 99,863.26 - Step 4: Simplify right side
163,636.18x = 22,541,129,055.40 - Step 5: Solve for x
x = 22,541,129,055.40/163,636.18 - Step 6: Final answer
x = 137,751.50
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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.