Finding the Fourth Proportional to 136,525.91, 204,881.09 and 47,780.19
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Solution
The fourth proportional to 136,525.91, 204,881.09 and 47,780.19 is: 71,702.56
Step by Step Solution
- Step 1: Write the proportion equation
136,525.91 : 204,881.09 = 47,780.19 : x - Step 2: Convert to fraction form
136,525.91/204,881.09 = 47,780.19/x - Step 3: Cross multiply
136,525.91x = 204,881.09 × 47,780.19 - Step 4: Simplify right side
136,525.91x = 9,789,257,168.71 - Step 5: Solve for x
x = 9,789,257,168.71/136,525.91 - Step 6: Final answer
x = 71,702.56
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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.