Finding the Fourth Proportional to 115,833.12, 173,763.36 and 36,919.68
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Solution
The fourth proportional to 115,833.12, 173,763.36 and 36,919.68 is: 55,383.88
Step by Step Solution
- Step 1: Write the proportion equation
115,833.12 : 173,763.36 = 36,919.68 : x - Step 2: Convert to fraction form
115,833.12/173,763.36 = 36,919.68/x - Step 3: Cross multiply
115,833.12x = 173,763.36 × 36,919.68 - Step 4: Simplify right side
115,833.12x = 6,415,287,646.92 - Step 5: Solve for x
x = 6,415,287,646.92/115,833.12 - Step 6: Final answer
x = 55,383.88
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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.