Finding the Fourth Proportional to 79,148.74, 118,722.87 and 61,163.14
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Solution
The fourth proportional to 79,148.74, 118,722.87 and 61,163.14 is: 91,744.52
Step by Step Solution
- Step 1: Write the proportion equation
79,148.74 : 118,722.87 = 61,163.14 : x - Step 2: Convert to fraction form
79,148.74/118,722.87 = 61,163.14/x - Step 3: Cross multiply
79,148.74x = 118,722.87 × 61,163.14 - Step 4: Simplify right side
79,148.74x = 7,261,463,519.01 - Step 5: Solve for x
x = 7,261,463,519.01/79,148.74 - Step 6: Final answer
x = 91,744.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.