Finding the Fourth Proportional to 102,762.84, 153,901.26 and 87,599.64
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Solution
The fourth proportional to 102,762.84, 153,901.26 and 87,599.64 is: 131,192.32
Step by Step Solution
- Step 1: Write the proportion equation
102,762.84 : 153,901.26 = 87,599.64 : x - Step 2: Convert to fraction form
102,762.84/153,901.26 = 87,599.64/x - Step 3: Cross multiply
102,762.84x = 153,901.26 × 87,599.64 - Step 4: Simplify right side
102,762.84x = 13,481,694,971.55 - Step 5: Solve for x
x = 13,481,694,971.55/102,762.84 - Step 6: Final answer
x = 131,192.32
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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.