Finding the Fourth Proportional to 161,929.76, 242,901.92 and 49,601.79
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Solution
The fourth proportional to 161,929.76, 242,901.92 and 49,601.79 is: 74,404.92
Step by Step Solution
- Step 1: Write the proportion equation
161,929.76 : 242,901.92 = 49,601.79 : x - Step 2: Convert to fraction form
161,929.76/242,901.92 = 49,601.79/x - Step 3: Cross multiply
161,929.76x = 242,901.92 × 49,601.79 - Step 4: Simplify right side
161,929.76x = 12,048,370,150.44 - Step 5: Solve for x
x = 12,048,370,150.44/161,929.76 - Step 6: Final answer
x = 74,404.92
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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.