Finding the Fourth Proportional to 113,959.86, 170,939.91 and 29,719.95
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Solution
The fourth proportional to 113,959.86, 170,939.91 and 29,719.95 is: 44,579.96
Step by Step Solution
- Step 1: Write the proportion equation
113,959.86 : 170,939.91 = 29,719.95 : x - Step 2: Convert to fraction form
113,959.86/170,939.91 = 29,719.95/x - Step 3: Cross multiply
113,959.86x = 170,939.91 × 29,719.95 - Step 4: Simplify right side
113,959.86x = 5,080,325,578.20 - Step 5: Solve for x
x = 5,080,325,578.20/113,959.86 - Step 6: Final answer
x = 44,579.96
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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.