Finding the Fourth Proportional to 115,445.36, 159,313.09 and 64,458.96
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Solution
The fourth proportional to 115,445.36, 159,313.09 and 64,458.96 is: 88,952.52
Step by Step Solution
- Step 1: Write the proportion equation
115,445.36 : 159,313.09 = 64,458.96 : x - Step 2: Convert to fraction form
115,445.36/159,313.09 = 64,458.96/x - Step 3: Cross multiply
115,445.36x = 159,313.09 × 64,458.96 - Step 4: Simplify right side
115,445.36x = 10,269,155,773.49 - Step 5: Solve for x
x = 10,269,155,773.49/115,445.36 - Step 6: Final answer
x = 88,952.52
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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.