Finding the Fourth Proportional to 95,129.10, 131,153.67 and 81,843.06
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Solution
The fourth proportional to 95,129.10, 131,153.67 and 81,843.06 is: 112,836.32
Step by Step Solution
- Step 1: Write the proportion equation
95,129.10 : 131,153.67 = 81,843.06 : x - Step 2: Convert to fraction form
95,129.10/131,153.67 = 81,843.06/x - Step 3: Cross multiply
95,129.10x = 131,153.67 × 81,843.06 - Step 4: Simplify right side
95,129.10x = 10,734,017,683.03 - Step 5: Solve for x
x = 10,734,017,683.03/95,129.10 - Step 6: Final answer
x = 112,836.32
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1.5x scale
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.