Finding the Fourth Proportional to 140,755.84, 194,262.36 and 86,340.52
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Solution
The fourth proportional to 140,755.84, 194,262.36 and 86,340.52 is: 119,161.76
Step by Step Solution
- Step 1: Write the proportion equation
140,755.84 : 194,262.36 = 86,340.52 : x - Step 2: Convert to fraction form
140,755.84/194,262.36 = 86,340.52/x - Step 3: Cross multiply
140,755.84x = 194,262.36 × 86,340.52 - Step 4: Simplify right side
140,755.84x = 16,772,713,178.83 - Step 5: Solve for x
x = 16,772,713,178.83/140,755.84 - Step 6: Final answer
x = 119,161.76
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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.