Finding the Fourth Proportional to 166,243.21, 229,421.30 and 98,318.41
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Solution
The fourth proportional to 166,243.21, 229,421.30 and 98,318.41 is: 135,682.75
Step by Step Solution
- Step 1: Write the proportion equation
166,243.21 : 229,421.30 = 98,318.41 : x - Step 2: Convert to fraction form
166,243.21/229,421.30 = 98,318.41/x - Step 3: Cross multiply
166,243.21x = 229,421.30 × 98,318.41 - Step 4: Simplify right side
166,243.21x = 22,556,336,370.99 - Step 5: Solve for x
x = 22,556,336,370.99/166,243.21 - Step 6: Final answer
x = 135,682.75
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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.