Finding the Fourth Proportional to 115,195.08, 159,031.92 and 79,576.68
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Solution
The fourth proportional to 115,195.08, 159,031.92 and 79,576.68 is: 109,859.14
Step by Step Solution
- Step 1: Write the proportion equation
115,195.08 : 159,031.92 = 79,576.68 : x - Step 2: Convert to fraction form
115,195.08/159,031.92 = 79,576.68/x - Step 3: Cross multiply
115,195.08x = 159,031.92 × 79,576.68 - Step 4: Simplify right side
115,195.08x = 12,655,232,207.63 - Step 5: Solve for x
x = 12,655,232,207.63/115,195.08 - Step 6: Final answer
x = 109,859.14
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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.