Finding the Fourth Proportional to 157,417.54, 217,236.37 and 85,797.62
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Solution
The fourth proportional to 157,417.54, 217,236.37 and 85,797.62 is: 118,400.81
Step by Step Solution
- Step 1: Write the proportion equation
157,417.54 : 217,236.37 = 85,797.62 : x - Step 2: Convert to fraction form
157,417.54/217,236.37 = 85,797.62/x - Step 3: Cross multiply
157,417.54x = 217,236.37 × 85,797.62 - Step 4: Simplify right side
157,417.54x = 18,638,363,523.44 - Step 5: Solve for x
x = 18,638,363,523.44/157,417.54 - Step 6: Final answer
x = 118,400.81
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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.