Finding the Fourth Proportional to 128,542.63, 192,562.84 and 88,554.55
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Solution
The fourth proportional to 128,542.63, 192,562.84 and 88,554.55 is: 132,658.84
Step by Step Solution
- Step 1: Write the proportion equation
128,542.63 : 192,562.84 = 88,554.55 : x - Step 2: Convert to fraction form
128,542.63/192,562.84 = 88,554.55/x - Step 3: Cross multiply
128,542.63x = 192,562.84 × 88,554.55 - Step 4: Simplify right side
128,542.63x = 17,052,315,642.92 - Step 5: Solve for x
x = 17,052,315,642.92/128,542.63 - Step 6: Final answer
x = 132,658.84
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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.