Finding the Fourth Proportional to 146,378.63, 202,002.64 and 79,310.63
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Solution
The fourth proportional to 146,378.63, 202,002.64 and 79,310.63 is: 109,448.74
Step by Step Solution
- Step 1: Write the proportion equation
146,378.63 : 202,002.64 = 79,310.63 : x - Step 2: Convert to fraction form
146,378.63/202,002.64 = 79,310.63/x - Step 3: Cross multiply
146,378.63x = 202,002.64 × 79,310.63 - Step 4: Simplify right side
146,378.63x = 16,020,956,640.06 - Step 5: Solve for x
x = 16,020,956,640.06/146,378.63 - Step 6: Final answer
x = 109,448.74
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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.