Finding the Fourth Proportional to 111,542.43, 153,953.97 and 63,822.09
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Solution
The fourth proportional to 111,542.43, 153,953.97 and 63,822.09 is: 88,089.03
Step by Step Solution
- Step 1: Write the proportion equation
111,542.43 : 153,953.97 = 63,822.09 : x - Step 2: Convert to fraction form
111,542.43/153,953.97 = 63,822.09/x - Step 3: Cross multiply
111,542.43x = 153,953.97 × 63,822.09 - Step 4: Simplify right side
111,542.43x = 9,825,664,129.20 - Step 5: Solve for x
x = 9,825,664,129.20/111,542.43 - Step 6: Final answer
x = 88,089.03
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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.