Finding the Fourth Proportional to 84,170.26, 125,943.54 and 67,479.81
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Solution
The fourth proportional to 84,170.26, 125,943.54 and 67,479.81 is: 100,969.70
Step by Step Solution
- Step 1: Write the proportion equation
84,170.26 : 125,943.54 = 67,479.81 : x - Step 2: Convert to fraction form
84,170.26/125,943.54 = 67,479.81/x - Step 3: Cross multiply
84,170.26x = 125,943.54 × 67,479.81 - Step 4: Simplify right side
84,170.26x = 8,498,646,149.93 - Step 5: Solve for x
x = 8,498,646,149.93/84,170.26 - Step 6: Final answer
x = 100,969.70
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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.