Finding the Fourth Proportional to 87,328.80, 122,536.80 and 87,328.80
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Solution
The fourth proportional to 87,328.80, 122,536.80 and 87,328.80 is: 122,536.80
Step by Step Solution
- Step 1: Write the proportion equation
87,328.80 : 122,536.80 = 87,328.80 : x - Step 2: Convert to fraction form
87,328.80/122,536.80 = 87,328.80/x - Step 3: Cross multiply
87,328.80x = 122,536.80 × 87,328.80 - Step 4: Simplify right side
87,328.80x = 10,700,991,699.84 - Step 5: Solve for x
x = 10,700,991,699.84/87,328.80 - Step 6: Final answer
x = 122,536.80
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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.