Finding the Fourth Proportional to 125,720.06, 173,575.59 and 78,043.46
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Solution
The fourth proportional to 125,720.06, 173,575.59 and 78,043.46 is: 107,750.82
Step by Step Solution
- Step 1: Write the proportion equation
125,720.06 : 173,575.59 = 78,043.46 : x - Step 2: Convert to fraction form
125,720.06/173,575.59 = 78,043.46/x - Step 3: Cross multiply
125,720.06x = 173,575.59 × 78,043.46 - Step 4: Simplify right side
125,720.06x = 13,546,439,615.14 - Step 5: Solve for x
x = 13,546,439,615.14/125,720.06 - Step 6: Final answer
x = 107,750.82
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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.