Finding the Fourth Proportional to 107.76, 160.62 and 104.26
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Solution
The fourth proportional to 107.76, 160.62 and 104.26 is: 155.40
Step by Step Solution
- Step 1: Write the proportion equation
107.76 : 160.62 = 104.26 : x - Step 2: Convert to fraction form
107.76/160.62 = 104.26/x - Step 3: Cross multiply
107.76x = 160.62 × 104.26 - Step 4: Simplify right side
107.76x = 16,746.24 - Step 5: Solve for x
x = 16,746.24/107.76 - Step 6: Final answer
x = 155.40
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.