Finding the Fourth Proportional to 102,617.75, 141,612.50 and 57,905.75
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Solution
The fourth proportional to 102,617.75, 141,612.50 and 57,905.75 is: 79,909.94
Step by Step Solution
- Step 1: Write the proportion equation
102,617.75 : 141,612.50 = 57,905.75 : x - Step 2: Convert to fraction form
102,617.75/141,612.50 = 57,905.75/x - Step 3: Cross multiply
102,617.75x = 141,612.50 × 57,905.75 - Step 4: Simplify right side
102,617.75x = 8,200,178,021.88 - Step 5: Solve for x
x = 8,200,178,021.88/102,617.75 - Step 6: Final answer
x = 79,909.94
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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.