Finding the Fourth Proportional to 186,316.97, 257,122.04 and 101,438.69
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Solution
The fourth proportional to 186,316.97, 257,122.04 and 101,438.69 is: 139,987.90
Step by Step Solution
- Step 1: Write the proportion equation
186,316.97 : 257,122.04 = 101,438.69 : x - Step 2: Convert to fraction form
186,316.97/257,122.04 = 101,438.69/x - Step 3: Cross multiply
186,316.97x = 257,122.04 × 101,438.69 - Step 4: Simplify right side
186,316.97x = 26,082,121,114.92 - Step 5: Solve for x
x = 26,082,121,114.92/186,316.97 - Step 6: Final answer
x = 139,987.90
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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.