Finding the Fourth Proportional to 170,609.09, 255,913.63 and 91,614.65
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Solution
The fourth proportional to 170,609.09, 255,913.63 and 91,614.65 is: 137,421.97
Step by Step Solution
- Step 1: Write the proportion equation
170,609.09 : 255,913.63 = 91,614.65 : x - Step 2: Convert to fraction form
170,609.09/255,913.63 = 91,614.65/x - Step 3: Cross multiply
170,609.09x = 255,913.63 × 91,614.65 - Step 4: Simplify right side
170,609.09x = 23,445,436,134.07 - Step 5: Solve for x
x = 23,445,436,134.07/170,609.09 - Step 6: Final answer
x = 137,421.97
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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.