Finding the Fourth Proportional to 159,890.91, 239,794.57 and 47,540.87
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Solution
The fourth proportional to 159,890.91, 239,794.57 and 47,540.87 is: 71,298.88
Step by Step Solution
- Step 1: Write the proportion equation
159,890.91 : 239,794.57 = 47,540.87 : x - Step 2: Convert to fraction form
159,890.91/239,794.57 = 47,540.87/x - Step 3: Cross multiply
159,890.91x = 239,794.57 × 47,540.87 - Step 4: Simplify right side
159,890.91x = 11,400,042,479.08 - Step 5: Solve for x
x = 11,400,042,479.08/159,890.91 - Step 6: Final answer
x = 71,298.88
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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.