Finding the Fourth Proportional to 113,910.18, 157,198.41 and 63,609.18
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Solution
The fourth proportional to 113,910.18, 157,198.41 and 63,609.18 is: 87,781.99
Step by Step Solution
- Step 1: Write the proportion equation
113,910.18 : 157,198.41 = 63,609.18 : x - Step 2: Convert to fraction form
113,910.18/157,198.41 = 63,609.18/x - Step 3: Cross multiply
113,910.18x = 157,198.41 × 63,609.18 - Step 4: Simplify right side
113,910.18x = 9,999,261,957.40 - Step 5: Solve for x
x = 9,999,261,957.40/113,910.18 - Step 6: Final answer
x = 87,781.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.