Finding the Fourth Proportional to 125,112.54, 187,447.35 and 103,928.70
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Solution
The fourth proportional to 125,112.54, 187,447.35 and 103,928.70 is: 155,709.09
Step by Step Solution
- Step 1: Write the proportion equation
125,112.54 : 187,447.35 = 103,928.70 : x - Step 2: Convert to fraction form
125,112.54/187,447.35 = 103,928.70/x - Step 3: Cross multiply
125,112.54x = 187,447.35 × 103,928.70 - Step 4: Simplify right side
125,112.54x = 19,481,159,403.95 - Step 5: Solve for x
x = 19,481,159,403.95/125,112.54 - Step 6: Final answer
x = 155,709.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.