Finding the Fourth Proportional to 112,418.22, 155,135.79 and 62,116.14
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Solution
The fourth proportional to 112,418.22, 155,135.79 and 62,116.14 is: 85,719.53
Step by Step Solution
- Step 1: Write the proportion equation
112,418.22 : 155,135.79 = 62,116.14 : x - Step 2: Convert to fraction form
112,418.22/155,135.79 = 62,116.14/x - Step 3: Cross multiply
112,418.22x = 155,135.79 × 62,116.14 - Step 4: Simplify right side
112,418.22x = 9,636,436,450.65 - Step 5: Solve for x
x = 9,636,436,450.65/112,418.22 - Step 6: Final answer
x = 85,719.53
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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.