Finding the Fourth Proportional to 93.53, 129.02 and 68.99
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Solution
The fourth proportional to 93.53, 129.02 and 68.99 is: 95.16
Step by Step Solution
- Step 1: Write the proportion equation
93.53 : 129.02 = 68.99 : x - Step 2: Convert to fraction form
93.53/129.02 = 68.99/x - Step 3: Cross multiply
93.53x = 129.02 × 68.99 - Step 4: Simplify right side
93.53x = 8,900.10 - Step 5: Solve for x
x = 8,900.10/93.53 - Step 6: Final answer
x = 95.16
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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.