Finding the Fourth Proportional to 102,660.05, 153,775.36 and 82,561.01
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Solution
The fourth proportional to 102,660.05, 153,775.36 and 82,561.01 is: 123,668.84
Step by Step Solution
- Step 1: Write the proportion equation
102,660.05 : 153,775.36 = 82,561.01 : x - Step 2: Convert to fraction form
102,660.05/153,775.36 = 82,561.01/x - Step 3: Cross multiply
102,660.05x = 153,775.36 × 82,561.01 - Step 4: Simplify right side
102,660.05x = 12,695,849,234.02 - Step 5: Solve for x
x = 12,695,849,234.02/102,660.05 - Step 6: Final answer
x = 123,668.84
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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.