Finding the Fourth Proportional to 187,711.02, 258,977.82 and 107,081.79
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Solution
The fourth proportional to 187,711.02, 258,977.82 and 107,081.79 is: 147,736.71
Step by Step Solution
- Step 1: Write the proportion equation
187,711.02 : 258,977.82 = 107,081.79 : x - Step 2: Convert to fraction form
187,711.02/258,977.82 = 107,081.79/x - Step 3: Cross multiply
187,711.02x = 258,977.82 × 107,081.79 - Step 4: Simplify right side
187,711.02x = 27,731,808,535.90 - Step 5: Solve for x
x = 27,731,808,535.90/187,711.02 - Step 6: Final answer
x = 147,736.71
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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.