Finding the Fourth Proportional to 134,960.73, 186,207.71 and 81,228.57
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Solution
The fourth proportional to 134,960.73, 186,207.71 and 81,228.57 is: 112,072.49
Step by Step Solution
- Step 1: Write the proportion equation
134,960.73 : 186,207.71 = 81,228.57 : x - Step 2: Convert to fraction form
134,960.73/186,207.71 = 81,228.57/x - Step 3: Cross multiply
134,960.73x = 186,207.71 × 81,228.57 - Step 4: Simplify right side
134,960.73x = 15,125,385,600.13 - Step 5: Solve for x
x = 15,125,385,600.13/134,960.73 - Step 6: Final answer
x = 112,072.49
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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.