Finding the Fourth Proportional to 126,345.76, 174,357.84 and 69,757.28
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Solution
The fourth proportional to 126,345.76, 174,357.84 and 69,757.28 is: 96,265.43
Step by Step Solution
- Step 1: Write the proportion equation
126,345.76 : 174,357.84 = 69,757.28 : x - Step 2: Convert to fraction form
126,345.76/174,357.84 = 69,757.28/x - Step 3: Cross multiply
126,345.76x = 174,357.84 × 69,757.28 - Step 4: Simplify right side
126,345.76x = 12,162,728,665.08 - Step 5: Solve for x
x = 12,162,728,665.08/126,345.76 - Step 6: Final answer
x = 96,265.43
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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.