Finding the Fourth Proportional to 135,289.81, 202,872.16 and 76,125.47
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Solution
The fourth proportional to 135,289.81, 202,872.16 and 76,125.47 is: 114,153.01
Step by Step Solution
- Step 1: Write the proportion equation
135,289.81 : 202,872.16 = 76,125.47 : x - Step 2: Convert to fraction form
135,289.81/202,872.16 = 76,125.47/x - Step 3: Cross multiply
135,289.81x = 202,872.16 × 76,125.47 - Step 4: Simplify right side
135,289.81x = 15,443,738,149.29 - Step 5: Solve for x
x = 15,443,738,149.29/135,289.81 - Step 6: Final answer
x = 114,153.01
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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.