Finding the Fourth Proportional to 115,419.75, 159,279.48 and 65,118.75
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Solution
The fourth proportional to 115,419.75, 159,279.48 and 65,118.75 is: 89,864.00
Step by Step Solution
- Step 1: Write the proportion equation
115,419.75 : 159,279.48 = 65,118.75 : x - Step 2: Convert to fraction form
115,419.75/159,279.48 = 65,118.75/x - Step 3: Cross multiply
115,419.75x = 159,279.48 × 65,118.75 - Step 4: Simplify right side
115,419.75x = 10,372,080,638.25 - Step 5: Solve for x
x = 10,372,080,638.25/115,419.75 - Step 6: Final answer
x = 89,864.00
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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.