Finding the Fourth Proportional to 154,990.63, 213,832.05 and 101,306.65
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Solution
The fourth proportional to 154,990.63, 213,832.05 and 101,306.65 is: 139,767.21
Step by Step Solution
- Step 1: Write the proportion equation
154,990.63 : 213,832.05 = 101,306.65 : x - Step 2: Convert to fraction form
154,990.63/213,832.05 = 101,306.65/x - Step 3: Cross multiply
154,990.63x = 213,832.05 × 101,306.65 - Step 4: Simplify right side
154,990.63x = 21,662,608,648.13 - Step 5: Solve for x
x = 21,662,608,648.13/154,990.63 - Step 6: Final answer
x = 139,767.21
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.