Finding the Fourth Proportional to 99,911.76, 149,863.51 and 55,510.19
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Solution
The fourth proportional to 99,911.76, 149,863.51 and 55,510.19 is: 83,262.99
Step by Step Solution
- Step 1: Write the proportion equation
99,911.76 : 149,863.51 = 55,510.19 : x - Step 2: Convert to fraction form
99,911.76/149,863.51 = 55,510.19/x - Step 3: Cross multiply
99,911.76x = 149,863.51 × 55,510.19 - Step 4: Simplify right side
99,911.76x = 8,318,951,914.17 - Step 5: Solve for x
x = 8,318,951,914.17/99,911.76 - Step 6: Final answer
x = 83,262.99
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1.5x scale
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.