Finding the Fourth Proportional to 135,687.63, 203,503.77 and 51,418.76
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Solution
The fourth proportional to 135,687.63, 203,503.77 and 51,418.76 is: 77,117.65
Step by Step Solution
- Step 1: Write the proportion equation
135,687.63 : 203,503.77 = 51,418.76 : x - Step 2: Convert to fraction form
135,687.63/203,503.77 = 51,418.76/x - Step 3: Cross multiply
135,687.63x = 203,503.77 × 51,418.76 - Step 4: Simplify right side
135,687.63x = 10,463,911,777.48 - Step 5: Solve for x
x = 10,463,911,777.48/135,687.63 - Step 6: Final answer
x = 77,117.65
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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.