Finding the Fourth Proportional to 115,190.24, 158,961.84 and 64,905.44
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Solution
The fourth proportional to 115,190.24, 158,961.84 and 64,905.44 is: 89,569.12
Step by Step Solution
- Step 1: Write the proportion equation
115,190.24 : 158,961.84 = 64,905.44 : x - Step 2: Convert to fraction form
115,190.24/158,961.84 = 64,905.44/x - Step 3: Cross multiply
115,190.24x = 158,961.84 × 64,905.44 - Step 4: Simplify right side
115,190.24x = 10,317,488,168.41 - Step 5: Solve for x
x = 10,317,488,168.41/115,190.24 - Step 6: Final answer
x = 89,569.12
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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.