Finding the Fourth Proportional to 106,221.72, 159,430.92 and 53,668.08
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Solution
The fourth proportional to 106,221.72, 159,430.92 and 53,668.08 is: 80,551.81
Step by Step Solution
- Step 1: Write the proportion equation
106,221.72 : 159,430.92 = 53,668.08 : x - Step 2: Convert to fraction form
106,221.72/159,430.92 = 53,668.08/x - Step 3: Cross multiply
106,221.72x = 159,430.92 × 53,668.08 - Step 4: Simplify right side
106,221.72x = 8,556,351,369.03 - Step 5: Solve for x
x = 8,556,351,369.03/106,221.72 - Step 6: Final answer
x = 80,551.81
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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.