Finding the Fourth Proportional to 102,408.88, 153,639.24 and 28,536.88
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Solution
The fourth proportional to 102,408.88, 153,639.24 and 28,536.88 is: 42,812.54
Step by Step Solution
- Step 1: Write the proportion equation
102,408.88 : 153,639.24 = 28,536.88 : x - Step 2: Convert to fraction form
102,408.88/153,639.24 = 28,536.88/x - Step 3: Cross multiply
102,408.88x = 153,639.24 × 28,536.88 - Step 4: Simplify right side
102,408.88x = 4,384,384,555.17 - Step 5: Solve for x
x = 4,384,384,555.17/102,408.88 - Step 6: Final answer
x = 42,812.54
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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.