Finding the Fourth Proportional to 140,727.97, 194,203.14 and 76,196.09
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Solution
The fourth proportional to 140,727.97, 194,203.14 and 76,196.09 is: 105,149.82
Step by Step Solution
- Step 1: Write the proportion equation
140,727.97 : 194,203.14 = 76,196.09 : x - Step 2: Convert to fraction form
140,727.97/194,203.14 = 76,196.09/x - Step 3: Cross multiply
140,727.97x = 194,203.14 × 76,196.09 - Step 4: Simplify right side
140,727.97x = 14,797,520,133.50 - Step 5: Solve for x
x = 14,797,520,133.50/140,727.97 - Step 6: Final answer
x = 105,149.82
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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.