Finding the Fourth Proportional to 163,439.14, 225,540.80 and 90,841.68
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Solution
The fourth proportional to 163,439.14, 225,540.80 and 90,841.68 is: 125,358.61
Step by Step Solution
- Step 1: Write the proportion equation
163,439.14 : 225,540.80 = 90,841.68 : x - Step 2: Convert to fraction form
163,439.14/225,540.80 = 90,841.68/x - Step 3: Cross multiply
163,439.14x = 225,540.80 × 90,841.68 - Step 4: Simplify right side
163,439.14x = 20,488,503,598.63 - Step 5: Solve for x
x = 20,488,503,598.63/163,439.14 - Step 6: Final answer
x = 125,358.61
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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.