Finding the Fourth Proportional to 139,589.68, 192,631.80 and 75,926.02
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Solution
The fourth proportional to 139,589.68, 192,631.80 and 75,926.02 is: 104,776.84
Step by Step Solution
- Step 1: Write the proportion equation
139,589.68 : 192,631.80 = 75,926.02 : x - Step 2: Convert to fraction form
139,589.68/192,631.80 = 75,926.02/x - Step 3: Cross multiply
139,589.68x = 192,631.80 × 75,926.02 - Step 4: Simplify right side
139,589.68x = 14,625,765,899.44 - Step 5: Solve for x
x = 14,625,765,899.44/139,589.68 - Step 6: Final answer
x = 104,776.84
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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.