Finding the Fourth Proportional to 106,867.62, 147,479.91 and 59,121.90
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Solution
The fourth proportional to 106,867.62, 147,479.91 and 59,121.90 is: 81,589.66
Step by Step Solution
- Step 1: Write the proportion equation
106,867.62 : 147,479.91 = 59,121.90 : x - Step 2: Convert to fraction form
106,867.62/147,479.91 = 59,121.90/x - Step 3: Cross multiply
106,867.62x = 147,479.91 × 59,121.90 - Step 4: Simplify right side
106,867.62x = 8,719,292,491.03 - Step 5: Solve for x
x = 8,719,292,491.03/106,867.62 - Step 6: Final answer
x = 81,589.66
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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.