Finding the Fourth Proportional to 115,009.99, 172,531.18 and 40,119.21
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Solution
The fourth proportional to 115,009.99, 172,531.18 and 40,119.21 is: 60,184.46
Step by Step Solution
- Step 1: Write the proportion equation
115,009.99 : 172,531.18 = 40,119.21 : x - Step 2: Convert to fraction form
115,009.99/172,531.18 = 40,119.21/x - Step 3: Cross multiply
115,009.99x = 172,531.18 × 40,119.21 - Step 4: Simplify right side
115,009.99x = 6,921,814,641.97 - Step 5: Solve for x
x = 6,921,814,641.97/115,009.99 - Step 6: Final answer
x = 60,184.46
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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.