Finding the Fourth Proportional to 93.99, 140.98 and 45.26
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Solution
The fourth proportional to 93.99, 140.98 and 45.26 is: 67.89
Step by Step Solution
- Step 1: Write the proportion equation
93.99 : 140.98 = 45.26 : x - Step 2: Convert to fraction form
93.99/140.98 = 45.26/x - Step 3: Cross multiply
93.99x = 140.98 × 45.26 - Step 4: Simplify right side
93.99x = 6,380.53 - Step 5: Solve for x
x = 6,380.53/93.99 - Step 6: Final answer
x = 67.89
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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.