Finding the Fourth Proportional to 117,481.79, 162,120.53 and 63,765.68
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Solution
The fourth proportional to 117,481.79, 162,120.53 and 63,765.68 is: 87,994.28
Step by Step Solution
- Step 1: Write the proportion equation
117,481.79 : 162,120.53 = 63,765.68 : x - Step 2: Convert to fraction form
117,481.79/162,120.53 = 63,765.68/x - Step 3: Cross multiply
117,481.79x = 162,120.53 × 63,765.68 - Step 4: Simplify right side
117,481.79x = 10,337,725,186.22 - Step 5: Solve for x
x = 10,337,725,186.22/117,481.79 - Step 6: Final answer
x = 87,994.28
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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.