Finding the Fourth Proportional to 130.96, 180.68 and 98.26
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Solution
The fourth proportional to 130.96, 180.68 and 98.26 is: 135.57
Step by Step Solution
- Step 1: Write the proportion equation
130.96 : 180.68 = 98.26 : x - Step 2: Convert to fraction form
130.96/180.68 = 98.26/x - Step 3: Cross multiply
130.96x = 180.68 × 98.26 - Step 4: Simplify right side
130.96x = 17,753.62 - Step 5: Solve for x
x = 17,753.62/130.96 - Step 6: Final answer
x = 135.57
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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.