Finding the Fourth Proportional to 159,668.24, 220,332.84 and 91,669.52
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Solution
The fourth proportional to 159,668.24, 220,332.84 and 91,669.52 is: 126,498.58
Step by Step Solution
- Step 1: Write the proportion equation
159,668.24 : 220,332.84 = 91,669.52 : x - Step 2: Convert to fraction form
159,668.24/220,332.84 = 91,669.52/x - Step 3: Cross multiply
159,668.24x = 220,332.84 × 91,669.52 - Step 4: Simplify right side
159,668.24x = 20,197,805,683.04 - Step 5: Solve for x
x = 20,197,805,683.04/159,668.24 - Step 6: Final answer
x = 126,498.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.