Finding the Fourth Proportional to 146,153.14, 201,686.28 and 81,625.70
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Solution
The fourth proportional to 146,153.14, 201,686.28 and 81,625.70 is: 112,640.64
Step by Step Solution
- Step 1: Write the proportion equation
146,153.14 : 201,686.28 = 81,625.70 : x - Step 2: Convert to fraction form
146,153.14/201,686.28 = 81,625.70/x - Step 3: Cross multiply
146,153.14x = 201,686.28 × 81,625.70 - Step 4: Simplify right side
146,153.14x = 16,462,783,785.40 - Step 5: Solve for x
x = 16,462,783,785.40/146,153.14 - Step 6: Final answer
x = 112,640.64
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1.5x scale
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.