Finding the Fourth Proportional to 80,833.14, 121,523.36 and 65,148.23
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Solution
The fourth proportional to 80,833.14, 121,523.36 and 65,148.23 is: 97,942.90
Step by Step Solution
- Step 1: Write the proportion equation
80,833.14 : 121,523.36 = 65,148.23 : x - Step 2: Convert to fraction form
80,833.14/121,523.36 = 65,148.23/x - Step 3: Cross multiply
80,833.14x = 121,523.36 × 65,148.23 - Step 4: Simplify right side
80,833.14x = 7,917,031,785.72 - Step 5: Solve for x
x = 7,917,031,785.72/80,833.14 - Step 6: Final answer
x = 97,942.90
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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.