Finding the Fourth Proportional to 149,707.26, 206,630.75 and 98,729.19
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Solution
The fourth proportional to 149,707.26, 206,630.75 and 98,729.19 is: 136,269.19
Step by Step Solution
- Step 1: Write the proportion equation
149,707.26 : 206,630.75 = 98,729.19 : x - Step 2: Convert to fraction form
149,707.26/206,630.75 = 98,729.19/x - Step 3: Cross multiply
149,707.26x = 206,630.75 × 98,729.19 - Step 4: Simplify right side
149,707.26x = 20,400,486,823.42 - Step 5: Solve for x
x = 20,400,486,823.42/149,707.26 - Step 6: Final answer
x = 136,269.19
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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.