Finding the Fourth Proportional to 115,409.20, 173,146.20 and 56,246.80
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Solution
The fourth proportional to 115,409.20, 173,146.20 and 56,246.80 is: 84,385.99
Step by Step Solution
- Step 1: Write the proportion equation
115,409.20 : 173,146.20 = 56,246.80 : x - Step 2: Convert to fraction form
115,409.20/173,146.20 = 56,246.80/x - Step 3: Cross multiply
115,409.20x = 173,146.20 × 56,246.80 - Step 4: Simplify right side
115,409.20x = 9,738,919,682.16 - Step 5: Solve for x
x = 9,738,919,682.16/115,409.20 - Step 6: Final answer
x = 84,385.99
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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.