Finding the Fourth Proportional to 140,988.26, 194,565.30 and 76,457.62
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Solution
The fourth proportional to 140,988.26, 194,565.30 and 76,457.62 is: 105,512.33
Step by Step Solution
- Step 1: Write the proportion equation
140,988.26 : 194,565.30 = 76,457.62 : x - Step 2: Convert to fraction form
140,988.26/194,565.30 = 76,457.62/x - Step 3: Cross multiply
140,988.26x = 194,565.30 × 76,457.62 - Step 4: Simplify right side
140,988.26x = 14,876,000,358.85 - Step 5: Solve for x
x = 14,876,000,358.85/140,988.26 - Step 6: Final answer
x = 105,512.33
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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.