Finding the Fourth Proportional to 126,912.55, 175,135.50 and 69,551.17
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Solution
The fourth proportional to 126,912.55, 175,135.50 and 69,551.17 is: 95,978.52
Step by Step Solution
- Step 1: Write the proportion equation
126,912.55 : 175,135.50 = 69,551.17 : x - Step 2: Convert to fraction form
126,912.55/175,135.50 = 69,551.17/x - Step 3: Cross multiply
126,912.55x = 175,135.50 × 69,551.17 - Step 4: Simplify right side
126,912.55x = 12,180,878,933.54 - Step 5: Solve for x
x = 12,180,878,933.54/126,912.55 - Step 6: Final answer
x = 95,978.52
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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.