Finding the Fourth Proportional to 108,135.64, 161,985.97 and 53,936.92
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Solution
The fourth proportional to 108,135.64, 161,985.97 and 53,936.92 is: 80,796.90
Step by Step Solution
- Step 1: Write the proportion equation
108,135.64 : 161,985.97 = 53,936.92 : x - Step 2: Convert to fraction form
108,135.64/161,985.97 = 53,936.92/x - Step 3: Cross multiply
108,135.64x = 161,985.97 × 53,936.92 - Step 4: Simplify right side
108,135.64x = 8,737,024,305.01 - Step 5: Solve for x
x = 8,737,024,305.01/108,135.64 - Step 6: Final answer
x = 80,796.90
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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.