Finding the Fourth Proportional to 187,437.87, 258,657.82 and 106,891.31
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Solution
The fourth proportional to 187,437.87, 258,657.82 and 106,891.31 is: 147,506.34
Step by Step Solution
- Step 1: Write the proportion equation
187,437.87 : 258,657.82 = 106,891.31 : x - Step 2: Convert to fraction form
187,437.87/258,657.82 = 106,891.31/x - Step 3: Cross multiply
187,437.87x = 258,657.82 × 106,891.31 - Step 4: Simplify right side
187,437.87x = 27,648,273,868.19 - Step 5: Solve for x
x = 27,648,273,868.19/187,437.87 - Step 6: Final answer
x = 147,506.34
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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.