Finding the Fourth Proportional to 102,809.08, 154,213.78 and 28,937.08
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Solution
The fourth proportional to 102,809.08, 154,213.78 and 28,937.08 is: 43,405.67
Step by Step Solution
- Step 1: Write the proportion equation
102,809.08 : 154,213.78 = 28,937.08 : x - Step 2: Convert to fraction form
102,809.08/154,213.78 = 28,937.08/x - Step 3: Cross multiply
102,809.08x = 154,213.78 × 28,937.08 - Step 4: Simplify right side
102,809.08x = 4,462,496,488.96 - Step 5: Solve for x
x = 4,462,496,488.96/102,809.08 - Step 6: Final answer
x = 43,405.67
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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.