Finding the Fourth Proportional to 154,364.62, 213,029.04 and 89,828.68
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Solution
The fourth proportional to 154,364.62, 213,029.04 and 89,828.68 is: 123,966.99
Step by Step Solution
- Step 1: Write the proportion equation
154,364.62 : 213,029.04 = 89,828.68 : x - Step 2: Convert to fraction form
154,364.62/213,029.04 = 89,828.68/x - Step 3: Cross multiply
154,364.62x = 213,029.04 × 89,828.68 - Step 4: Simplify right side
154,364.62x = 19,136,117,464.87 - Step 5: Solve for x
x = 19,136,117,464.87/154,364.62 - Step 6: Final answer
x = 123,966.99
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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.