Finding the Fourth Proportional to 125,028.02, 172,543.02 and 68,439.80
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Solution
The fourth proportional to 125,028.02, 172,543.02 and 68,439.80 is: 94,449.31
Step by Step Solution
- Step 1: Write the proportion equation
125,028.02 : 172,543.02 = 68,439.80 : x - Step 2: Convert to fraction form
125,028.02/172,543.02 = 68,439.80/x - Step 3: Cross multiply
125,028.02x = 172,543.02 × 68,439.80 - Step 4: Simplify right side
125,028.02x = 11,808,809,780.20 - Step 5: Solve for x
x = 11,808,809,780.20/125,028.02 - Step 6: Final answer
x = 94,449.31
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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.