Finding the Fourth Proportional to 135,289.31, 186,686.53 and 91,592.97
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Solution
The fourth proportional to 135,289.31, 186,686.53 and 91,592.97 is: 126,389.70
Step by Step Solution
- Step 1: Write the proportion equation
135,289.31 : 186,686.53 = 91,592.97 : x - Step 2: Convert to fraction form
135,289.31/186,686.53 = 91,592.97/x - Step 3: Cross multiply
135,289.31x = 186,686.53 × 91,592.97 - Step 4: Simplify right side
135,289.31x = 17,099,174,093.92 - Step 5: Solve for x
x = 17,099,174,093.92/135,289.31 - Step 6: Final answer
x = 126,389.70
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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.