Finding the Fourth Proportional to 106.99, 160.18 and 87.55
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Solution
The fourth proportional to 106.99, 160.18 and 87.55 is: 131.07
Step by Step Solution
- Step 1: Write the proportion equation
106.99 : 160.18 = 87.55 : x - Step 2: Convert to fraction form
106.99/160.18 = 87.55/x - Step 3: Cross multiply
106.99x = 160.18 × 87.55 - Step 4: Simplify right side
106.99x = 14,023.14 - Step 5: Solve for x
x = 14,023.14/106.99 - Step 6: Final answer
x = 131.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.