Finding the Fourth Proportional to 157.23, 216.99 and 104.68
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Solution
The fourth proportional to 157.23, 216.99 and 104.68 is: 144.47
Step by Step Solution
- Step 1: Write the proportion equation
157.23 : 216.99 = 104.68 : x - Step 2: Convert to fraction form
157.23/216.99 = 104.68/x - Step 3: Cross multiply
157.23x = 216.99 × 104.68 - Step 4: Simplify right side
157.23x = 22,714.51 - Step 5: Solve for x
x = 22,714.51/157.23 - Step 6: Final answer
x = 144.47
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.