Finding the Fourth Proportional to 99,683.80, 149,402.57 and 85,544.44
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Solution
The fourth proportional to 99,683.80, 149,402.57 and 85,544.44 is: 128,211.00
Step by Step Solution
- Step 1: Write the proportion equation
99,683.80 : 149,402.57 = 85,544.44 : x - Step 2: Convert to fraction form
99,683.80/149,402.57 = 85,544.44/x - Step 3: Cross multiply
99,683.80x = 149,402.57 × 85,544.44 - Step 4: Simplify right side
99,683.80x = 12,780,559,185.21 - Step 5: Solve for x
x = 12,780,559,185.21/99,683.80 - Step 6: Final answer
x = 128,211.00
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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.