Finding the Fourth Proportional to 122.99, 184.70 and 106.12
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Solution
The fourth proportional to 122.99, 184.70 and 106.12 is: 159.36
Step by Step Solution
- Step 1: Write the proportion equation
122.99 : 184.70 = 106.12 : x - Step 2: Convert to fraction form
122.99/184.70 = 106.12/x - Step 3: Cross multiply
122.99x = 184.70 × 106.12 - Step 4: Simplify right side
122.99x = 19,600.17 - Step 5: Solve for x
x = 19,600.17/122.99 - Step 6: Final answer
x = 159.36
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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.