Finding the Fourth Proportional to 115,165.68, 172,649.17 and 46,786.08
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Solution
The fourth proportional to 115,165.68, 172,649.17 and 46,786.08 is: 70,138.76
Step by Step Solution
- Step 1: Write the proportion equation
115,165.68 : 172,649.17 = 46,786.08 : x - Step 2: Convert to fraction form
115,165.68/172,649.17 = 46,786.08/x - Step 3: Cross multiply
115,165.68x = 172,649.17 × 46,786.08 - Step 4: Simplify right side
115,165.68x = 8,077,577,879.55 - Step 5: Solve for x
x = 8,077,577,879.55/115,165.68 - Step 6: Final answer
x = 70,138.76
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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.