Finding the Fourth Proportional to 113,962.44, 157,202.40 and 68,608.92
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Solution
The fourth proportional to 113,962.44, 157,202.40 and 68,608.92 is: 94,640.72
Step by Step Solution
- Step 1: Write the proportion equation
113,962.44 : 157,202.40 = 68,608.92 : x - Step 2: Convert to fraction form
113,962.44/157,202.40 = 68,608.92/x - Step 3: Cross multiply
113,962.44x = 157,202.40 × 68,608.92 - Step 4: Simplify right side
113,962.44x = 10,785,486,885.41 - Step 5: Solve for x
x = 10,785,486,885.41/113,962.44 - Step 6: Final answer
x = 94,640.72
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1.5x scale
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.