Finding the Fourth Proportional to 126,357.26, 189,368.21 and 67,065.26
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Solution
The fourth proportional to 126,357.26, 189,368.21 and 67,065.26 is: 100,508.89
Step by Step Solution
- Step 1: Write the proportion equation
126,357.26 : 189,368.21 = 67,065.26 : x - Step 2: Convert to fraction form
126,357.26/189,368.21 = 67,065.26/x - Step 3: Cross multiply
126,357.26x = 189,368.21 × 67,065.26 - Step 4: Simplify right side
126,357.26x = 12,700,026,957.22 - Step 5: Solve for x
x = 12,700,026,957.22/126,357.26 - Step 6: Final answer
x = 100,508.89
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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.