Finding the Fourth Proportional to 129,354.24, 194,031.44 and 58,193.76
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Solution
The fourth proportional to 129,354.24, 194,031.44 and 58,193.76 is: 87,290.68
Step by Step Solution
- Step 1: Write the proportion equation
129,354.24 : 194,031.44 = 58,193.76 : x - Step 2: Convert to fraction form
129,354.24/194,031.44 = 58,193.76/x - Step 3: Cross multiply
129,354.24x = 194,031.44 × 58,193.76 - Step 4: Simplify right side
129,354.24x = 11,291,419,051.81 - Step 5: Solve for x
x = 11,291,419,051.81/129,354.24 - Step 6: Final answer
x = 87,290.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.