Finding the Fourth Proportional to 136,437.99, 186,920.73 and 131,324.45
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Solution
The fourth proportional to 136,437.99, 186,920.73 and 131,324.45 is: 179,915.15
Step by Step Solution
- Step 1: Write the proportion equation
136,437.99 : 186,920.73 = 131,324.45 : x - Step 2: Convert to fraction form
136,437.99/186,920.73 = 131,324.45/x - Step 3: Cross multiply
136,437.99x = 186,920.73 × 131,324.45 - Step 4: Simplify right side
136,437.99x = 24,547,261,404.23 - Step 5: Solve for x
x = 24,547,261,404.23/136,437.99 - Step 6: Final answer
x = 179,915.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.