Finding the Fourth Proportional to 140,725.98, 194,199.50 and 76,194.70
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Solution
The fourth proportional to 140,725.98, 194,199.50 and 76,194.70 is: 105,147.41
Step by Step Solution
- Step 1: Write the proportion equation
140,725.98 : 194,199.50 = 76,194.70 : x - Step 2: Convert to fraction form
140,725.98/194,199.50 = 76,194.70/x - Step 3: Cross multiply
140,725.98x = 194,199.50 × 76,194.70 - Step 4: Simplify right side
140,725.98x = 14,796,972,642.65 - Step 5: Solve for x
x = 14,796,972,642.65/140,725.98 - Step 6: Final answer
x = 105,147.41
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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.