Finding the Fourth Proportional to 166,481.76, 229,743.36 and 91,030.80
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Solution
The fourth proportional to 166,481.76, 229,743.36 and 91,030.80 is: 125,621.70
Step by Step Solution
- Step 1: Write the proportion equation
166,481.76 : 229,743.36 = 91,030.80 : x - Step 2: Convert to fraction form
166,481.76/229,743.36 = 91,030.80/x - Step 3: Cross multiply
166,481.76x = 229,743.36 × 91,030.80 - Step 4: Simplify right side
166,481.76x = 20,913,721,855.49 - Step 5: Solve for x
x = 20,913,721,855.49/166,481.76 - Step 6: Final answer
x = 125,621.70
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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.