Finding the Fourth Proportional to 146,105.76, 201,623.98 and 81,575.99
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Solution
The fourth proportional to 146,105.76, 201,623.98 and 81,575.99 is: 112,573.77
Step by Step Solution
- Step 1: Write the proportion equation
146,105.76 : 201,623.98 = 81,575.99 : x - Step 2: Convert to fraction form
146,105.76/201,623.98 = 81,575.99/x - Step 3: Cross multiply
146,105.76x = 201,623.98 × 81,575.99 - Step 4: Simplify right side
146,105.76x = 16,447,675,776.24 - Step 5: Solve for x
x = 16,447,675,776.24/146,105.76 - Step 6: Final answer
x = 112,573.77
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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.