Finding the Fourth Proportional to 203,689.76, 281,125.62 and 118,806.80
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Solution
The fourth proportional to 203,689.76, 281,125.62 and 118,806.80 is: 163,973.07
Step by Step Solution
- Step 1: Write the proportion equation
203,689.76 : 281,125.62 = 118,806.80 : x - Step 2: Convert to fraction form
203,689.76/281,125.62 = 118,806.80/x - Step 3: Cross multiply
203,689.76x = 281,125.62 × 118,806.80 - Step 4: Simplify right side
203,689.76x = 33,399,633,904.59 - Step 5: Solve for x
x = 33,399,633,904.59/203,689.76 - Step 6: Final answer
x = 163,973.07
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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.