Finding the Fourth Proportional to 93.92, 140.64 and 68.08
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Solution
The fourth proportional to 93.92, 140.64 and 68.08 is: 101.95
Step by Step Solution
- Step 1: Write the proportion equation
93.92 : 140.64 = 68.08 : x - Step 2: Convert to fraction form
93.92/140.64 = 68.08/x - Step 3: Cross multiply
93.92x = 140.64 × 68.08 - Step 4: Simplify right side
93.92x = 9,574.77 - Step 5: Solve for x
x = 9,574.77/93.92 - Step 6: Final answer
x = 101.95
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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.