Finding the Fourth Proportional to 159,701.10, 239,260.05 and 129,957.90
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Solution
The fourth proportional to 159,701.10, 239,260.05 and 129,957.90 is: 194,699.56
Step by Step Solution
- Step 1: Write the proportion equation
159,701.10 : 239,260.05 = 129,957.90 : x - Step 2: Convert to fraction form
159,701.10/239,260.05 = 129,957.90/x - Step 3: Cross multiply
159,701.10x = 239,260.05 × 129,957.90 - Step 4: Simplify right side
159,701.10x = 31,093,733,651.90 - Step 5: Solve for x
x = 31,093,733,651.90/159,701.10 - Step 6: Final answer
x = 194,699.56
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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.