Finding the Fourth Proportional to 142,273.53, 213,027.88 and 108,378.09
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Solution
The fourth proportional to 142,273.53, 213,027.88 and 108,378.09 is: 162,275.83
Step by Step Solution
- Step 1: Write the proportion equation
142,273.53 : 213,027.88 = 108,378.09 : x - Step 2: Convert to fraction form
142,273.53/213,027.88 = 108,378.09/x - Step 3: Cross multiply
142,273.53x = 213,027.88 × 108,378.09 - Step 4: Simplify right side
142,273.53x = 23,087,554,988.23 - Step 5: Solve for x
x = 23,087,554,988.23/142,273.53 - Step 6: Final answer
x = 162,275.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.