Finding the Fourth Proportional to 147,058.65, 202,940.92 and 79,990.65
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Solution
The fourth proportional to 147,058.65, 202,940.92 and 79,990.65 is: 110,387.09
Step by Step Solution
- Step 1: Write the proportion equation
147,058.65 : 202,940.92 = 79,990.65 : x - Step 2: Convert to fraction form
147,058.65/202,940.92 = 79,990.65/x - Step 3: Cross multiply
147,058.65x = 202,940.92 × 79,990.65 - Step 4: Simplify right side
147,058.65x = 16,233,375,902.42 - Step 5: Solve for x
x = 16,233,375,902.42/147,058.65 - Step 6: Final answer
x = 110,387.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.