Finding the Fourth Proportional to 129,567.04, 178,741.43 and 75,819.09
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Solution
The fourth proportional to 129,567.04, 178,741.43 and 75,819.09 is: 104,594.59
Step by Step Solution
- Step 1: Write the proportion equation
129,567.04 : 178,741.43 = 75,819.09 : x - Step 2: Convert to fraction form
129,567.04/178,741.43 = 75,819.09/x - Step 3: Cross multiply
129,567.04x = 178,741.43 × 75,819.09 - Step 4: Simplify right side
129,567.04x = 13,552,011,295.10 - Step 5: Solve for x
x = 13,552,011,295.10/129,567.04 - Step 6: Final answer
x = 104,594.59
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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.