Finding the Fourth Proportional to 135,088.16, 202,642.36 and 40,310.87
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Solution
The fourth proportional to 135,088.16, 202,642.36 and 40,310.87 is: 60,469.32
Step by Step Solution
- Step 1: Write the proportion equation
135,088.16 : 202,642.36 = 40,310.87 : x - Step 2: Convert to fraction form
135,088.16/202,642.36 = 40,310.87/x - Step 3: Cross multiply
135,088.16x = 202,642.36 × 40,310.87 - Step 4: Simplify right side
135,088.16x = 8,168,688,716.46 - Step 5: Solve for x
x = 8,168,688,716.46/135,088.16 - Step 6: Final answer
x = 60,469.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.