Finding the Fourth Proportional to 136,882.98, 188,896.52 and 76,454.48
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Solution
The fourth proportional to 136,882.98, 188,896.52 and 76,454.48 is: 105,506.07
Step by Step Solution
- Step 1: Write the proportion equation
136,882.98 : 188,896.52 = 76,454.48 : x - Step 2: Convert to fraction form
136,882.98/188,896.52 = 76,454.48/x - Step 3: Cross multiply
136,882.98x = 188,896.52 × 76,454.48 - Step 4: Simplify right side
136,882.98x = 14,441,985,873.79 - Step 5: Solve for x
x = 14,441,985,873.79/136,882.98 - Step 6: Final answer
x = 105,506.07
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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.