Finding the Fourth Proportional to 121,990.43, 182,913.36 and 37,725.65
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Solution
The fourth proportional to 121,990.43, 182,913.36 and 37,725.65 is: 56,566.12
Step by Step Solution
- Step 1: Write the proportion equation
121,990.43 : 182,913.36 = 37,725.65 : x - Step 2: Convert to fraction form
121,990.43/182,913.36 = 37,725.65/x - Step 3: Cross multiply
121,990.43x = 182,913.36 × 37,725.65 - Step 4: Simplify right side
121,990.43x = 6,900,525,399.68 - Step 5: Solve for x
x = 6,900,525,399.68/121,990.43 - Step 6: Final answer
x = 56,566.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.