Finding the Fourth Proportional to 151,116.27, 208,544.19 and 83,135.07
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Solution
The fourth proportional to 151,116.27, 208,544.19 and 83,135.07 is: 114,728.45
Step by Step Solution
- Step 1: Write the proportion equation
151,116.27 : 208,544.19 = 83,135.07 : x - Step 2: Convert to fraction form
151,116.27/208,544.19 = 83,135.07/x - Step 3: Cross multiply
151,116.27x = 208,544.19 × 83,135.07 - Step 4: Simplify right side
151,116.27x = 17,337,335,833.74 - Step 5: Solve for x
x = 17,337,335,833.74/151,116.27 - Step 6: Final answer
x = 114,728.45
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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.