Finding the Fourth Proportional to 114.50, 157.99 and 89.99
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Solution
The fourth proportional to 114.50, 157.99 and 89.99 is: 124.17
Step by Step Solution
- Step 1: Write the proportion equation
114.50 : 157.99 = 89.99 : x - Step 2: Convert to fraction form
114.50/157.99 = 89.99/x - Step 3: Cross multiply
114.50x = 157.99 × 89.99 - Step 4: Simplify right side
114.50x = 14,217.52 - Step 5: Solve for x
x = 14,217.52/114.50 - Step 6: Final answer
x = 124.17
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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.