Finding the Fourth Proportional to 107,516.58, 161,277.09 and 39,125.79
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Solution
The fourth proportional to 107,516.58, 161,277.09 and 39,125.79 is: 58,689.49
Step by Step Solution
- Step 1: Write the proportion equation
107,516.58 : 161,277.09 = 39,125.79 : x - Step 2: Convert to fraction form
107,516.58/161,277.09 = 39,125.79/x - Step 3: Cross multiply
107,516.58x = 161,277.09 × 39,125.79 - Step 4: Simplify right side
107,516.58x = 6,310,093,359.52 - Step 5: Solve for x
x = 6,310,093,359.52/107,516.58 - Step 6: Final answer
x = 58,689.49
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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.