Finding the Fourth Proportional to 125,155.72, 172,719.29 and 68,567.09
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Solution
The fourth proportional to 125,155.72, 172,719.29 and 68,567.09 is: 94,624.99
Step by Step Solution
- Step 1: Write the proportion equation
125,155.72 : 172,719.29 = 68,567.09 : x - Step 2: Convert to fraction form
125,155.72/172,719.29 = 68,567.09/x - Step 3: Cross multiply
125,155.72x = 172,719.29 × 68,567.09 - Step 4: Simplify right side
125,155.72x = 11,842,858,759.33 - Step 5: Solve for x
x = 11,842,858,759.33/125,155.72 - Step 6: Final answer
x = 94,624.99
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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.