Finding the Fourth Proportional to 103,527.63, 142,869.60 and 58,203.09
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Solution
The fourth proportional to 103,527.63, 142,869.60 and 58,203.09 is: 80,321.09
Step by Step Solution
- Step 1: Write the proportion equation
103,527.63 : 142,869.60 = 58,203.09 : x - Step 2: Convert to fraction form
103,527.63/142,869.60 = 58,203.09/x - Step 3: Cross multiply
103,527.63x = 142,869.60 × 58,203.09 - Step 4: Simplify right side
103,527.63x = 8,315,452,187.06 - Step 5: Solve for x
x = 8,315,452,187.06/103,527.63 - Step 6: Final answer
x = 80,321.09
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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.