Finding the Fourth Proportional to 170,818.23, 235,711.71 and 99,213.42
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Solution
The fourth proportional to 170,818.23, 235,711.71 and 99,213.42 is: 136,904.39
Step by Step Solution
- Step 1: Write the proportion equation
170,818.23 : 235,711.71 = 99,213.42 : x - Step 2: Convert to fraction form
170,818.23/235,711.71 = 99,213.42/x - Step 3: Cross multiply
170,818.23x = 235,711.71 × 99,213.42 - Step 4: Simplify right side
170,818.23x = 23,385,764,883.15 - Step 5: Solve for x
x = 23,385,764,883.15/170,818.23 - Step 6: Final answer
x = 136,904.39
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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.