Finding the Fourth Proportional to 74,450.70, 103,997.70 and 74,450.70
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Solution
The fourth proportional to 74,450.70, 103,997.70 and 74,450.70 is: 103,997.70
Step by Step Solution
- Step 1: Write the proportion equation
74,450.70 : 103,997.70 = 74,450.70 : x - Step 2: Convert to fraction form
74,450.70/103,997.70 = 74,450.70/x - Step 3: Cross multiply
74,450.70x = 103,997.70 × 74,450.70 - Step 4: Simplify right side
74,450.70x = 7,742,701,563.39 - Step 5: Solve for x
x = 7,742,701,563.39/74,450.70 - Step 6: Final answer
x = 103,997.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.