Finding the Fourth Proportional to 163,251.91, 225,285.38 and 91,630.63
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Solution
The fourth proportional to 163,251.91, 225,285.38 and 91,630.63 is: 126,449.00
Step by Step Solution
- Step 1: Write the proportion equation
163,251.91 : 225,285.38 = 91,630.63 : x - Step 2: Convert to fraction form
163,251.91/225,285.38 = 91,630.63/x - Step 3: Cross multiply
163,251.91x = 225,285.38 × 91,630.63 - Step 4: Simplify right side
163,251.91x = 20,643,040,172.76 - Step 5: Solve for x
x = 20,643,040,172.76/163,251.91 - Step 6: Final answer
x = 126,449.00
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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.