Finding the Fourth Proportional to 142,566.99, 196,786.26 and 82,177.99
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Solution
The fourth proportional to 142,566.99, 196,786.26 and 82,177.99 is: 113,430.89
Step by Step Solution
- Step 1: Write the proportion equation
142,566.99 : 196,786.26 = 82,177.99 : x - Step 2: Convert to fraction form
142,566.99/196,786.26 = 82,177.99/x - Step 3: Cross multiply
142,566.99x = 196,786.26 × 82,177.99 - Step 4: Simplify right side
142,566.99x = 16,171,499,921.37 - Step 5: Solve for x
x = 16,171,499,921.37/142,566.99 - Step 6: Final answer
x = 113,430.89
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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.