Finding the Fourth Proportional to 135,490.32, 202,411.33 and 87,716.21
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Solution
The fourth proportional to 135,490.32, 202,411.33 and 87,716.21 is: 131,040.75
Step by Step Solution
- Step 1: Write the proportion equation
135,490.32 : 202,411.33 = 87,716.21 : x - Step 2: Convert to fraction form
135,490.32/202,411.33 = 87,716.21/x - Step 3: Cross multiply
135,490.32x = 202,411.33 × 87,716.21 - Step 4: Simplify right side
135,490.32x = 17,754,753,497.31 - Step 5: Solve for x
x = 17,754,753,497.31/135,490.32 - Step 6: Final answer
x = 131,040.75
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.