Finding the Fourth Proportional to 125,873.02, 173,759.19 and 90,000.70
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Solution
The fourth proportional to 125,873.02, 173,759.19 and 90,000.70 is: 124,239.88
Step by Step Solution
- Step 1: Write the proportion equation
125,873.02 : 173,759.19 = 90,000.70 : x - Step 2: Convert to fraction form
125,873.02/173,759.19 = 90,000.70/x - Step 3: Cross multiply
125,873.02x = 173,759.19 × 90,000.70 - Step 4: Simplify right side
125,873.02x = 15,638,448,731.43 - Step 5: Solve for x
x = 15,638,448,731.43/125,873.02 - Step 6: Final answer
x = 124,239.88
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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.