Finding the Fourth Proportional to 97.13, 134.01 and 90.59
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Solution
The fourth proportional to 97.13, 134.01 and 90.59 is: 124.99
Step by Step Solution
- Step 1: Write the proportion equation
97.13 : 134.01 = 90.59 : x - Step 2: Convert to fraction form
97.13/134.01 = 90.59/x - Step 3: Cross multiply
97.13x = 134.01 × 90.59 - Step 4: Simplify right side
97.13x = 12,139.30 - Step 5: Solve for x
x = 12,139.30/97.13 - Step 6: Final answer
x = 124.99
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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.