Finding the Fourth Proportional to 98,601.21, 147,901.68 and 39,450.78
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Solution
The fourth proportional to 98,601.21, 147,901.68 and 39,450.78 is: 59,176.12
Step by Step Solution
- Step 1: Write the proportion equation
98,601.21 : 147,901.68 = 39,450.78 : x - Step 2: Convert to fraction form
98,601.21/147,901.68 = 39,450.78/x - Step 3: Cross multiply
98,601.21x = 147,901.68 × 39,450.78 - Step 4: Simplify right side
98,601.21x = 5,834,836,639.31 - Step 5: Solve for x
x = 5,834,836,639.31/98,601.21 - Step 6: Final answer
x = 59,176.12
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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.