Finding the Fourth Proportional to 121,349.09, 181,880.66 and 54,711.20
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Solution
The fourth proportional to 121,349.09, 181,880.66 and 54,711.20 is: 82,002.33
Step by Step Solution
- Step 1: Write the proportion equation
121,349.09 : 181,880.66 = 54,711.20 : x - Step 2: Convert to fraction form
121,349.09/181,880.66 = 54,711.20/x - Step 3: Cross multiply
121,349.09x = 181,880.66 × 54,711.20 - Step 4: Simplify right side
121,349.09x = 9,950,908,255.99 - Step 5: Solve for x
x = 9,950,908,255.99/121,349.09 - Step 6: Final answer
x = 82,002.33
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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.