Finding the Fourth Proportional to 145,161.16, 217,767.24 and 66,283.36
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Solution
The fourth proportional to 145,161.16, 217,767.24 and 66,283.36 is: 99,436.68
Step by Step Solution
- Step 1: Write the proportion equation
145,161.16 : 217,767.24 = 66,283.36 : x - Step 2: Convert to fraction form
145,161.16/217,767.24 = 66,283.36/x - Step 3: Cross multiply
145,161.16x = 217,767.24 × 66,283.36 - Step 4: Simplify right side
145,161.16x = 14,434,344,365.13 - Step 5: Solve for x
x = 14,434,344,365.13/145,161.16 - Step 6: Final answer
x = 99,436.68
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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.