Finding the Fourth Proportional to 113,424.14, 170,136.18 and 30,318.14
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Solution
The fourth proportional to 113,424.14, 170,136.18 and 30,318.14 is: 45,477.20
Step by Step Solution
- Step 1: Write the proportion equation
113,424.14 : 170,136.18 = 30,318.14 : x - Step 2: Convert to fraction form
113,424.14/170,136.18 = 30,318.14/x - Step 3: Cross multiply
113,424.14x = 170,136.18 × 30,318.14 - Step 4: Simplify right side
113,424.14x = 5,158,212,524.31 - Step 5: Solve for x
x = 5,158,212,524.31/113,424.14 - Step 6: Final answer
x = 45,477.20
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1.5x scale
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.