Finding the Fourth Proportional to 136,809.18, 205,212.69 and 73,658.88
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Solution
The fourth proportional to 136,809.18, 205,212.69 and 73,658.88 is: 110,487.74
Step by Step Solution
- Step 1: Write the proportion equation
136,809.18 : 205,212.69 = 73,658.88 : x - Step 2: Convert to fraction form
136,809.18/205,212.69 = 73,658.88/x - Step 3: Cross multiply
136,809.18x = 205,212.69 × 73,658.88 - Step 4: Simplify right side
136,809.18x = 15,115,736,907.19 - Step 5: Solve for x
x = 15,115,736,907.19/136,809.18 - Step 6: Final answer
x = 110,487.74
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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.