Finding the Fourth Proportional to 110,571.40, 152,467.94 and 74,699.12
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Solution
The fourth proportional to 110,571.40, 152,467.94 and 74,699.12 is: 103,003.32
Step by Step Solution
- Step 1: Write the proportion equation
110,571.40 : 152,467.94 = 74,699.12 : x - Step 2: Convert to fraction form
110,571.40/152,467.94 = 74,699.12/x - Step 3: Cross multiply
110,571.40x = 152,467.94 × 74,699.12 - Step 4: Simplify right side
110,571.40x = 11,389,220,946.21 - Step 5: Solve for x
x = 11,389,220,946.21/110,571.40 - Step 6: Final answer
x = 103,003.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.