Finding the Fourth Proportional to 120,169.62, 180,096.68 and 88,431.08
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Solution
The fourth proportional to 120,169.62, 180,096.68 and 88,431.08 is: 132,530.53
Step by Step Solution
- Step 1: Write the proportion equation
120,169.62 : 180,096.68 = 88,431.08 : x - Step 2: Convert to fraction form
120,169.62/180,096.68 = 88,431.08/x - Step 3: Cross multiply
120,169.62x = 180,096.68 × 88,431.08 - Step 4: Simplify right side
120,169.62x = 15,926,143,916.81 - Step 5: Solve for x
x = 15,926,143,916.81/120,169.62 - Step 6: Final answer
x = 132,530.53
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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.