Finding the Fourth Proportional to 121,908.21, 182,934.99 and 54,435.03
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Solution
The fourth proportional to 121,908.21, 182,934.99 and 54,435.03 is: 81,685.00
Step by Step Solution
- Step 1: Write the proportion equation
121,908.21 : 182,934.99 = 54,435.03 : x - Step 2: Convert to fraction form
121,908.21/182,934.99 = 54,435.03/x - Step 3: Cross multiply
121,908.21x = 182,934.99 × 54,435.03 - Step 4: Simplify right side
121,908.21x = 9,958,071,668.70 - Step 5: Solve for x
x = 9,958,071,668.70/121,908.21 - Step 6: Final answer
x = 81,685.00
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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.