Finding the Fourth Proportional to 140,477.09, 193,863.02 and 76,814.88
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Solution
The fourth proportional to 140,477.09, 193,863.02 and 76,814.88 is: 106,007.08
Step by Step Solution
- Step 1: Write the proportion equation
140,477.09 : 193,863.02 = 76,814.88 : x - Step 2: Convert to fraction form
140,477.09/193,863.02 = 76,814.88/x - Step 3: Cross multiply
140,477.09x = 193,863.02 × 76,814.88 - Step 4: Simplify right side
140,477.09x = 14,891,565,029.24 - Step 5: Solve for x
x = 14,891,565,029.24/140,477.09 - Step 6: Final answer
x = 106,007.08
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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.