Finding the Fourth Proportional to 163,630.80, 245,446.20 and 88,981.20
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Solution
The fourth proportional to 163,630.80, 245,446.20 and 88,981.20 is: 133,471.80
Step by Step Solution
- Step 1: Write the proportion equation
163,630.80 : 245,446.20 = 88,981.20 : x - Step 2: Convert to fraction form
163,630.80/245,446.20 = 88,981.20/x - Step 3: Cross multiply
163,630.80x = 245,446.20 × 88,981.20 - Step 4: Simplify right side
163,630.80x = 21,840,097,411.44 - Step 5: Solve for x
x = 21,840,097,411.44/163,630.80 - Step 6: Final answer
x = 133,471.80
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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.