Finding the Fourth Proportional to 129,727.44, 194,162.40 and 118,069.92
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Solution
The fourth proportional to 129,727.44, 194,162.40 and 118,069.92 is: 176,714.65
Step by Step Solution
- Step 1: Write the proportion equation
129,727.44 : 194,162.40 = 118,069.92 : x - Step 2: Convert to fraction form
129,727.44/194,162.40 = 118,069.92/x - Step 3: Cross multiply
129,727.44x = 194,162.40 × 118,069.92 - Step 4: Simplify right side
129,727.44x = 22,924,739,035.01 - Step 5: Solve for x
x = 22,924,739,035.01/129,727.44 - Step 6: Final answer
x = 176,714.65
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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.