Finding the Fourth Proportional to 138,790.37, 191,534.36 and 84,324.02
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Solution
The fourth proportional to 138,790.37, 191,534.36 and 84,324.02 is: 116,369.35
Step by Step Solution
- Step 1: Write the proportion equation
138,790.37 : 191,534.36 = 84,324.02 : x - Step 2: Convert to fraction form
138,790.37/191,534.36 = 84,324.02/x - Step 3: Cross multiply
138,790.37x = 191,534.36 × 84,324.02 - Step 4: Simplify right side
138,790.37x = 16,150,945,824.04 - Step 5: Solve for x
x = 16,150,945,824.04/138,790.37 - Step 6: Final answer
x = 116,369.35
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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.