Finding the Fourth Proportional to 187,611.36, 258,901.09 and 102,728.41
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Solution
The fourth proportional to 187,611.36, 258,901.09 and 102,728.41 is: 141,763.79
Step by Step Solution
- Step 1: Write the proportion equation
187,611.36 : 258,901.09 = 102,728.41 : x - Step 2: Convert to fraction form
187,611.36/258,901.09 = 102,728.41/x - Step 3: Cross multiply
187,611.36x = 258,901.09 × 102,728.41 - Step 4: Simplify right side
187,611.36x = 26,596,497,322.97 - Step 5: Solve for x
x = 26,596,497,322.97/187,611.36 - Step 6: Final answer
x = 141,763.79
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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.