Finding the Fourth Proportional to 108,065.75, 161,967.30 and 76,484.99
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Solution
The fourth proportional to 108,065.75, 161,967.30 and 76,484.99 is: 114,634.54
Step by Step Solution
- Step 1: Write the proportion equation
108,065.75 : 161,967.30 = 76,484.99 : x - Step 2: Convert to fraction form
108,065.75/161,967.30 = 76,484.99/x - Step 3: Cross multiply
108,065.75x = 161,967.30 × 76,484.99 - Step 4: Simplify right side
108,065.75x = 12,388,067,438.93 - Step 5: Solve for x
x = 12,388,067,438.93/108,065.75 - Step 6: Final answer
x = 114,634.54
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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.