Finding the Fourth Proportional to 139,225.68, 192,129.84 and 75,563.52
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Solution
The fourth proportional to 139,225.68, 192,129.84 and 75,563.52 is: 104,276.79
Step by Step Solution
- Step 1: Write the proportion equation
139,225.68 : 192,129.84 = 75,563.52 : x - Step 2: Convert to fraction form
139,225.68/192,129.84 = 75,563.52/x - Step 3: Cross multiply
139,225.68x = 192,129.84 × 75,563.52 - Step 4: Simplify right side
139,225.68x = 14,518,007,007.44 - Step 5: Solve for x
x = 14,518,007,007.44/139,225.68 - Step 6: Final answer
x = 104,276.79
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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.