Finding the Fourth Proportional to 100,932.63, 151,532.87 and 86,235.99
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Solution
The fourth proportional to 100,932.63, 151,532.87 and 86,235.99 is: 129,468.41
Step by Step Solution
- Step 1: Write the proportion equation
100,932.63 : 151,532.87 = 86,235.99 : x - Step 2: Convert to fraction form
100,932.63/151,532.87 = 86,235.99/x - Step 3: Cross multiply
100,932.63x = 151,532.87 × 86,235.99 - Step 4: Simplify right side
100,932.63x = 13,067,586,630.81 - Step 5: Solve for x
x = 13,067,586,630.81/100,932.63 - Step 6: Final answer
x = 129,468.41
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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.