Finding the Fourth Proportional to 162,431.64, 243,396.18 and 112,609.08
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Solution
The fourth proportional to 162,431.64, 243,396.18 and 112,609.08 is: 168,739.41
Step by Step Solution
- Step 1: Write the proportion equation
162,431.64 : 243,396.18 = 112,609.08 : x - Step 2: Convert to fraction form
162,431.64/243,396.18 = 112,609.08/x - Step 3: Cross multiply
162,431.64x = 243,396.18 × 112,609.08 - Step 4: Simplify right side
162,431.64x = 27,408,619,905.31 - Step 5: Solve for x
x = 27,408,619,905.31/162,431.64 - Step 6: Final answer
x = 168,739.41
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.