Finding the Fourth Proportional to 115,420.20, 173,162.70 and 56,257.80
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Solution
The fourth proportional to 115,420.20, 173,162.70 and 56,257.80 is: 84,402.49
Step by Step Solution
- Step 1: Write the proportion equation
115,420.20 : 173,162.70 = 56,257.80 : x - Step 2: Convert to fraction form
115,420.20/173,162.70 = 56,257.80/x - Step 3: Cross multiply
115,420.20x = 173,162.70 × 56,257.80 - Step 4: Simplify right side
115,420.20x = 9,741,752,544.06 - Step 5: Solve for x
x = 9,741,752,544.06/115,420.20 - Step 6: Final answer
x = 84,402.49
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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.