Finding the Fourth Proportional to 97,694.60, 146,541.90 and 68,145.80
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Solution
The fourth proportional to 97,694.60, 146,541.90 and 68,145.80 is: 102,218.70
Step by Step Solution
- Step 1: Write the proportion equation
97,694.60 : 146,541.90 = 68,145.80 : x - Step 2: Convert to fraction form
97,694.60/146,541.90 = 68,145.80/x - Step 3: Cross multiply
97,694.60x = 146,541.90 × 68,145.80 - Step 4: Simplify right side
97,694.60x = 9,986,215,009.02 - Step 5: Solve for x
x = 9,986,215,009.02/97,694.60 - Step 6: Final answer
x = 102,218.70
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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.