Finding the Fourth Proportional to 92,847.85, 138,963.70 and 84,546.97
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Solution
The fourth proportional to 92,847.85, 138,963.70 and 84,546.97 is: 126,539.92
Step by Step Solution
- Step 1: Write the proportion equation
92,847.85 : 138,963.70 = 84,546.97 : x - Step 2: Convert to fraction form
92,847.85/138,963.70 = 84,546.97/x - Step 3: Cross multiply
92,847.85x = 138,963.70 × 84,546.97 - Step 4: Simplify right side
92,847.85x = 11,748,959,533.26 - Step 5: Solve for x
x = 11,748,959,533.26/92,847.85 - Step 6: Final answer
x = 126,539.92
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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.