Finding the Fourth Proportional to 115,007.99, 172,528.18 and 40,117.21
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Solution
The fourth proportional to 115,007.99, 172,528.18 and 40,117.21 is: 60,181.46
Step by Step Solution
- Step 1: Write the proportion equation
115,007.99 : 172,528.18 = 40,117.21 : x - Step 2: Convert to fraction form
115,007.99/172,528.18 = 40,117.21/x - Step 3: Cross multiply
115,007.99x = 172,528.18 × 40,117.21 - Step 4: Simplify right side
115,007.99x = 6,921,348,696.36 - Step 5: Solve for x
x = 6,921,348,696.36/115,007.99 - Step 6: Final answer
x = 60,181.46
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1.5x scale
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.