Finding the Fourth Proportional to 125,729.74, 173,328.27 and 100,010.62
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Solution
The fourth proportional to 125,729.74, 173,328.27 and 100,010.62 is: 137,872.45
Step by Step Solution
- Step 1: Write the proportion equation
125,729.74 : 173,328.27 = 100,010.62 : x - Step 2: Convert to fraction form
125,729.74/173,328.27 = 100,010.62/x - Step 3: Cross multiply
125,729.74x = 173,328.27 × 100,010.62 - Step 4: Simplify right side
125,729.74x = 17,334,667,746.23 - Step 5: Solve for x
x = 17,334,667,746.23/125,729.74 - Step 6: Final answer
x = 137,872.45
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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.