Finding the Fourth Proportional to 189,707.26, 261,792.84 and 103,664.35
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Solution
The fourth proportional to 189,707.26, 261,792.84 and 103,664.35 is: 143,055.07
Step by Step Solution
- Step 1: Write the proportion equation
189,707.26 : 261,792.84 = 103,664.35 : x - Step 2: Convert to fraction form
189,707.26/261,792.84 = 103,664.35/x - Step 3: Cross multiply
189,707.26x = 261,792.84 × 103,664.35 - Step 4: Simplify right side
189,707.26x = 27,138,584,593.25 - Step 5: Solve for x
x = 27,138,584,593.25/189,707.26 - Step 6: Final answer
x = 143,055.07
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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.