Finding the Fourth Proportional to 149,791.36, 206,713.48 and 85,257.44
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Solution
The fourth proportional to 149,791.36, 206,713.48 and 85,257.44 is: 117,656.07
Step by Step Solution
- Step 1: Write the proportion equation
149,791.36 : 206,713.48 = 85,257.44 : x - Step 2: Convert to fraction form
149,791.36/206,713.48 = 85,257.44/x - Step 3: Cross multiply
149,791.36x = 206,713.48 × 85,257.44 - Step 4: Simplify right side
149,791.36x = 17,623,861,905.15 - Step 5: Solve for x
x = 17,623,861,905.15/149,791.36 - Step 6: Final answer
x = 117,656.07
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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.