Finding the Fourth Proportional to 188,689.12, 260,392.68 and 102,649.98
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Solution
The fourth proportional to 188,689.12, 260,392.68 and 102,649.98 is: 141,657.89
Step by Step Solution
- Step 1: Write the proportion equation
188,689.12 : 260,392.68 = 102,649.98 : x - Step 2: Convert to fraction form
188,689.12/260,392.68 = 102,649.98/x - Step 3: Cross multiply
188,689.12x = 260,392.68 × 102,649.98 - Step 4: Simplify right side
188,689.12x = 26,729,302,229.91 - Step 5: Solve for x
x = 26,729,302,229.91/188,689.12 - Step 6: Final answer
x = 141,657.89
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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.