Finding the Fourth Proportional to 140,359.94, 193,701.49 and 76,701.84
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Solution
The fourth proportional to 140,359.94, 193,701.49 and 76,701.84 is: 105,851.14
Step by Step Solution
- Step 1: Write the proportion equation
140,359.94 : 193,701.49 = 76,701.84 : x - Step 2: Convert to fraction form
140,359.94/193,701.49 = 76,701.84/x - Step 3: Cross multiply
140,359.94x = 193,701.49 × 76,701.84 - Step 4: Simplify right side
140,359.94x = 14,857,260,207.05 - Step 5: Solve for x
x = 14,857,260,207.05/140,359.94 - Step 6: Final answer
x = 105,851.14
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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.