Finding the Fourth Proportional to 127,175.60, 175,476.84 and 81,782.48
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Solution
The fourth proportional to 127,175.60, 175,476.84 and 81,782.48 is: 112,843.43
Step by Step Solution
- Step 1: Write the proportion equation
127,175.60 : 175,476.84 = 81,782.48 : x - Step 2: Convert to fraction form
127,175.60/175,476.84 = 81,782.48/x - Step 3: Cross multiply
127,175.60x = 175,476.84 × 81,782.48 - Step 4: Simplify right side
127,175.60x = 14,350,931,157.76 - Step 5: Solve for x
x = 14,350,931,157.76/127,175.60 - Step 6: Final answer
x = 112,843.43
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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.