Finding the Fourth Proportional to 127,869.12, 176,524.16 and 99,125.44
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Solution
The fourth proportional to 127,869.12, 176,524.16 and 99,125.44 is: 136,843.32
Step by Step Solution
- Step 1: Write the proportion equation
127,869.12 : 176,524.16 = 99,125.44 : x - Step 2: Convert to fraction form
127,869.12/176,524.16 = 99,125.44/x - Step 3: Cross multiply
127,869.12x = 176,524.16 × 99,125.44 - Step 4: Simplify right side
127,869.12x = 17,498,035,030.63 - Step 5: Solve for x
x = 17,498,035,030.63/127,869.12 - Step 6: Final answer
x = 136,843.32
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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.