Finding the Fourth Proportional to 136,007.36, 187,521.44 and 90,585.84
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Solution
The fourth proportional to 136,007.36, 187,521.44 and 90,585.84 is: 124,896.09
Step by Step Solution
- Step 1: Write the proportion equation
136,007.36 : 187,521.44 = 90,585.84 : x - Step 2: Convert to fraction form
136,007.36/187,521.44 = 90,585.84/x - Step 3: Cross multiply
136,007.36x = 187,521.44 × 90,585.84 - Step 4: Simplify right side
136,007.36x = 16,986,787,160.41 - Step 5: Solve for x
x = 16,986,787,160.41/136,007.36 - Step 6: Final answer
x = 124,896.09
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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.