Finding the Fourth Proportional to 145,809.36, 201,211.20 and 82,159.92
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Solution
The fourth proportional to 145,809.36, 201,211.20 and 82,159.92 is: 113,377.47
Step by Step Solution
- Step 1: Write the proportion equation
145,809.36 : 201,211.20 = 82,159.92 : x - Step 2: Convert to fraction form
145,809.36/201,211.20 = 82,159.92/x - Step 3: Cross multiply
145,809.36x = 201,211.20 × 82,159.92 - Step 4: Simplify right side
145,809.36x = 16,531,496,095.10 - Step 5: Solve for x
x = 16,531,496,095.10/145,809.36 - Step 6: Final answer
x = 113,377.47
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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.