Finding the Fourth Proportional to 131,257.92, 196,537.44 and 68,797.76
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Solution
The fourth proportional to 131,257.92, 196,537.44 and 68,797.76 is: 103,013.48
Step by Step Solution
- Step 1: Write the proportion equation
131,257.92 : 196,537.44 = 68,797.76 : x - Step 2: Convert to fraction form
131,257.92/196,537.44 = 68,797.76/x - Step 3: Cross multiply
131,257.92x = 196,537.44 × 68,797.76 - Step 4: Simplify right side
131,257.92x = 13,521,335,628.13 - Step 5: Solve for x
x = 13,521,335,628.13/131,257.92 - Step 6: Final answer
x = 103,013.48
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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.