Finding the Fourth Proportional to 135,961.07, 187,643.58 and 82,246.47
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Solution
The fourth proportional to 135,961.07, 187,643.58 and 82,246.47 is: 113,510.60
Step by Step Solution
- Step 1: Write the proportion equation
135,961.07 : 187,643.58 = 82,246.47 : x - Step 2: Convert to fraction form
135,961.07/187,643.58 = 82,246.47/x - Step 3: Cross multiply
135,961.07x = 187,643.58 × 82,246.47 - Step 4: Simplify right side
135,961.07x = 15,433,021,999.29 - Step 5: Solve for x
x = 15,433,021,999.29/135,961.07 - Step 6: Final answer
x = 113,510.60
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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.