Finding the Fourth Proportional to 146,682.32, 219,838.80 and 79,983.68
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Solution
The fourth proportional to 146,682.32, 219,838.80 and 79,983.68 is: 119,874.82
Step by Step Solution
- Step 1: Write the proportion equation
146,682.32 : 219,838.80 = 79,983.68 : x - Step 2: Convert to fraction form
146,682.32/219,838.80 = 79,983.68/x - Step 3: Cross multiply
146,682.32x = 219,838.80 × 79,983.68 - Step 4: Simplify right side
146,682.32x = 17,583,516,230.78 - Step 5: Solve for x
x = 17,583,516,230.78/146,682.32 - Step 6: Final answer
x = 119,874.82
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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.