Finding the Fourth Proportional to 125,021.02, 172,525.80 and 68,428.75
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Solution
The fourth proportional to 125,021.02, 172,525.80 and 68,428.75 is: 94,429.92
Step by Step Solution
- Step 1: Write the proportion equation
125,021.02 : 172,525.80 = 68,428.75 : x - Step 2: Convert to fraction form
125,021.02/172,525.80 = 68,428.75/x - Step 3: Cross multiply
125,021.02x = 172,525.80 × 68,428.75 - Step 4: Simplify right side
125,021.02x = 11,805,724,836.75 - Step 5: Solve for x
x = 11,805,724,836.75/125,021.02 - Step 6: Final answer
x = 94,429.92
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1.5x scale
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.