Finding the Fourth Proportional to 146,378.46, 201,992.93 and 81,853.02
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Solution
The fourth proportional to 146,378.46, 201,992.93 and 81,853.02 is: 112,951.94
Step by Step Solution
- Step 1: Write the proportion equation
146,378.46 : 201,992.93 = 81,853.02 : x - Step 2: Convert to fraction form
146,378.46/201,992.93 = 81,853.02/x - Step 3: Cross multiply
146,378.46x = 201,992.93 × 81,853.02 - Step 4: Simplify right side
146,378.46x = 16,533,730,929.88 - Step 5: Solve for x
x = 16,533,730,929.88/146,378.46 - Step 6: Final answer
x = 112,951.94
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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.