Finding the Fourth Proportional to 154,882.84, 213,759.12 and 91,220.08
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Solution
The fourth proportional to 154,882.84, 213,759.12 and 91,220.08 is: 125,895.96
Step by Step Solution
- Step 1: Write the proportion equation
154,882.84 : 213,759.12 = 91,220.08 : x - Step 2: Convert to fraction form
154,882.84/213,759.12 = 91,220.08/x - Step 3: Cross multiply
154,882.84x = 213,759.12 × 91,220.08 - Step 4: Simplify right side
154,882.84x = 19,499,124,027.13 - Step 5: Solve for x
x = 19,499,124,027.13/154,882.84 - Step 6: Final answer
x = 125,895.96
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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.