Finding the Fourth Proportional to 140,247.36, 193,540.08 and 76,584.96
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Solution
The fourth proportional to 140,247.36, 193,540.08 and 76,584.96 is: 105,686.55
Step by Step Solution
- Step 1: Write the proportion equation
140,247.36 : 193,540.08 = 76,584.96 : x - Step 2: Convert to fraction form
140,247.36/193,540.08 = 76,584.96/x - Step 3: Cross multiply
140,247.36x = 193,540.08 × 76,584.96 - Step 4: Simplify right side
140,247.36x = 14,822,259,285.20 - Step 5: Solve for x
x = 14,822,259,285.20/140,247.36 - Step 6: Final answer
x = 105,686.55
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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.